Interest Rates Are Gravity

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“Interest rates are to asset prices what gravity is to the apple.” — Warren Buffett, during 2013 Berkshire Hathaway annual meeting

Gravity is always acting on every object, whether or not you notice it. Warren Buffett’s point is that interest rates exert a constant force on the value of every financial asset, from stocks to bonds to real estate to farmland.

The reason comes down to how value is calculated. The value of any asset is the cash it will produce in the future, discounted back to today. The interest rate sets the size of that discount:

  • When rates are low, future cash flows are discounted only a little, so they are worth more today. Asset prices can float higher, and when rates are near zero, valuations can stretch almost without limit.
  • When rates are high, future cash flows are heavily discounted, so they are worth less today. The downward pull on prices is strong.

In 1994, Buffett put this even more bluntly, saying that the intrinsic value of any business, whether Coca-Cola, Gillette, or Wells Fargo, is completely sensitive to interest rates.

The second part of the logic: competition for your money

Rates also set the bar that every other investment has to beat. If a government bond pays very little, a stock earning a modest return looks attractive by comparison. If the bond pays a lot, stocks have to offer much more to compete.

Buffett illustrated this with the early 1980s. With short-term rates around 21% under Paul Volcker, he noted that even a stock priced at only six times earnings wasn’t especially attractive, because investors could earn a huge, safe return elsewhere. Today, that same six-times-earnings stock would look like a bargain. Same stock, different gravity.

Why it mattered in 2013

Buffett was speaking in the aftermath of the financial crisis, when central banks had pushed rates to historic lows. His comments helped explain why stocks could justify high prices even though the economy was recovering slowly. Years later, he made a related point, saying stocks weren’t richly valued relative to the interest rates of the time.

That “relative to rates” phrasing is the heart of his implication: whether a price is high or low can’t be judged in isolation. A stock at 20 times earnings can be reasonable in a 2% world and expensive in a 6% world.

Why the idea feels timely again

By the time rates rose sharply after the low-rate era, many investors discovered what the metaphor predicts: prices that looked fine at near-zero rates came under pressure as rates climbed. Recent coverage has revisited the analogy as Treasury yields reached levels not seen in years. As always, markets weigh many forces, so rates rarely explain everything on their own.

Practical takeaways for investors

  • Always ask what rate the price assumes. A valuation is only meaningful relative to prevailing interest rates.
  • Long-duration and high-growth assets feel gravity most. Assets whose value depends on distant future cash flows are the most sensitive to changes in the discount rate.
  • Rising rates add pull; falling rates remove it. But the effect isn’t mechanical or immediate, and earnings growth can offset it.
  • Don’t treat it as a market-timing tool. Buffett himself has long avoided forecasting rates. He focuses on the quality and earnings power of businesses, and on buying at sensible prices, rather than betting on where rates go next.

The takeaway

Buffett’s gravity analogy is a reminder that interest rates aren’t just a background economic statistic. They are the force that sets how much every future dollar of profit is worth today. You can’t see gravity, but it shapes everything that falls, and in investing, rates do the same to prices.

This post is for general education and isn’t financial advice. I’m not a financial advisor, so consider consulting one before making investment decisions.

Oprah Winfrey on Gratitude

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“If you can learn to focus on what you have, you will always see that the universe is abundant; you will have more. If you concentrate on what you don’t have, you will never have enough.”  — Oprah Winfrey

For philanthropist and TV mogul Oprah Winfrey, gratitude means noticing and appreciating what you already have rather than focusing on what is missing.

Oprah’s gratitude journal practice is simple: write down five things you are grateful for each day. They don’t have to be major accomplishments—ordinary pleasures, meaningful conversations, and small moments of beauty count. The point is to notice what is good rather than let it pass unacknowledged.

“It sounds simple, but when you go through the day staying conscious about what you put on your gratitude list, it shifts the lens through which you see the world,” Oprah explained.

In other words, the practice starts before you open the journal: you begin looking for moments worth remembering throughout the day.

In short, a fulfilling life involves more than acquiring shiny new things: it means noticing and acknowledging what is already present, making time to enjoy it, and sharing it with others…being grateful.

Urolithin A: Benefits, Evidence, and Where to Get It

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Urolithin A (UA) is a compound made by your gut bacteria, which research suggests triggers mitophagy, the cell’s process for clearing out worn-out mitochondria so healthier ones can replace them. Mitochondrial quality declines with age, so a compound that supports this cleanup is an appealing idea for healthy aging.

A plain-language guide to the gut-derived compound being studied for muscle, metabolic, and brain health

What is urolithin A?

Urolithin A (UA) is a compound made by your gut bacteria. You don’t get it directly from food. Instead, microbes convert ellagitannins and ellagic acid, plant polyphenols found in pomegranates, walnuts, and berries, into UA.

UA has drawn attention because lab and animal research suggests it triggers mitophagy, the cell’s process for clearing out worn-out mitochondria so healthier ones can replace them. Mitochondrial quality declines with age, so a compound that supports this cleanup is an appealing idea for healthy aging.

The catch: not everyone makes UA efficiently. Whether you do depends on your gut microbiome. Studies describe distinct “metabotypes,” including people who produce UA, people who produce related compounds instead, and people who produce little or none. Estimates of how many people are low producers vary, but it’s a large share of the population.

Muscle and physical performance

This is where the human evidence is strongest, though still modest.

  • Older adults (about 66 people, average age near 72, four months): UA improved muscle endurance, but did not significantly improve walking distance or muscle ATP production compared with placebo.
  • Middle-aged adults (the ATLAS trial, about 88 people, four months): Participants taking 500 mg daily showed roughly a 12% improvement in muscle strength, along with improved peak oxygen consumption and better six-minute walk performance. However, the trial’s primary endpoint, peak power, did not reach statistical significance.
  • Putting it together: A 2026 systematic review found only five small, short-term randomized trials in varied populations. Results pointed in a consistent direction, but the authors called for larger, longer trials before firm clinical recommendations.

Bottom line: promising and plausible, but not proven. Think “possible modest support for muscle health,” not “reverses aging.”

Metabolic health

Human evidence on metabolic outcomes is thin.

  • Trials have reported lower levels of acylcarnitines (markers linked to mitochondrial fat-burning efficiency) and lower C-reactive protein (CRP), a general inflammation marker, after four months.
  • Animal studies suggest benefits for insulin sensitivity and fat metabolism, but these haven’t been confirmed with direct metabolic endpoints (like blood sugar control or body composition) in people.
  • A randomized trial is underway testing 500 mg daily for six months in adults with obesity during a structured weight-loss program, looking at whether UA helps preserve muscle and improve metabolic markers.

In short, the biomarker shifts are encouraging, but nobody should treat UA as a diabetes or weight-loss tool.

Immune function

A four-week human trial found that UA supplementation expanded naive CD8+ T cells, a type of immune cell that tends to decline with age. It’s an interesting signal, but it comes from a single short study and needs replication.

Cognitive and brain health

Here the evidence is the weakest. Most support comes from cell and animal research suggesting UA may reduce oxidative stress and neuroinflammation and protect neurons. In humans, there are observational and biomarker findings (for example, links between urolithin levels and brain volume) but no robust randomized trial showing that UA improves memory or thinking. Some ongoing trials list cognition as a secondary outcome, so better data may come.

If cognitive health is your goal, proven strategies like exercise, sleep, blood pressure control, and a Mediterranean-style diet have far stronger evidence.

Food sources

Foods don’t contain UA itself. They contain the precursors your microbiome may convert.

  • Pomegranate (fruit and juice): the richest and best-studied source
  • Walnuts, plus pecans and chestnuts
  • Berries: raspberries, strawberries, blackberries, and cloudberries
  • Oak-aged wines and spirits: contain ellagitannins from the barrel, though alcohol isn’t a health strategy

Eating these foods is good for you regardless. But because conversion varies so much between people, food alone may produce little or no UA for some.

Supplements

Supplements deliver UA directly, bypassing the microbiome step.

  • Doses studied: typically 500 mg to 1,000 mg per day, for up to four months in most trials
  • Absorption: blood levels peak roughly 3 to 5 hours after a dose
  • Product note: Most published human trials used a specific branded UA ingredient (Mitopure). Other products vary in purity and dose, so look for third-party testing.
  • Pomegranate extracts supply precursors, not UA, so results depend on your microbiome.

Safety: UA has been well tolerated in short trials of healthy middle-aged and older adults. Long-term safety data are limited. Regulatory status differs by country, and trials generally haven’t included people who are pregnant, breastfeeding, or managing serious illness. Check with a doctor or pharmacist before starting, especially if you take medications.

The takeaway

  • UA is a promising, biologically plausible compound for supporting mitochondrial health.
  • The best human evidence is for muscle endurance and strength; metabolic, immune, and cognitive evidence is early.
  • Eat ellagitannin-rich foods for general health, but don’t count on them to deliver UA.
  • Supplements are an option, not a necessity, and are no substitute for exercise, protein, sleep, and a healthy diet.

This post is for general information and isn’t medical advice. Research on urolithin A is evolving, so check current studies and talk with a healthcare professional before making health decisions.

Living a Life of Gratitude

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“Gratitude can transform common days into thanksgivings, turn routine jobs into joy, and change ordinary opportunities into blessings.”  — William Arthur Ward

Gratitude is appreciating what is good or meaningful in your life—from supportive people to small pleasures like a good meal or a quiet moment outdoors. It can be a feeling that arises naturally or something you deliberately practice.

The basics of gratitude include:

• Notice something good. Start small: someone’s kindness, a comfortable place to rest, or something that went well.
• Be specific. Rather than “I’m grateful for friends,” try “I appreciated my friend checking on me today.”
• Reflect on why it matters. What did that person or experience add to your day?
• Express it. Say thank you, send a short note, or return someone’s kindness with a thoughtful action.

A simple starting practice

A few times a week, take two minutes to finish these sentences:

1. “Something I appreciated today was…”
2. “It mattered to me because…”
3. “Someone I’d like to thank is…”
You can write your answers or simply reflect on them. Small, specific observations are enough; it doesn’t need to become a daily assignment.

In short, gratitude is a feeling of thankfulness and appreciation for the good in your life, including the kindness, help, and generosity you receive from others. It means recognizing both what you value and how others have contributed to it.

Envy makes a wealthy person feel poor. Gratitude lets a modest one feel rich.

Buy Stocks Cheat When Prices Fall

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“I’m happier when stocks are going down because I can buy more of them with the same amount of money.” — Warren Buffett

Many long-term investors are thrilled when stock prices decline. They believe that if you’re regularly investing a fixed amount (dollar-cost averaging), a falling market means each dollar buys more shares, which lowers your average cost and can boost returns when prices recover.

However, there are a few things to keep in mind:

  • Time horizon matters. This works best if you won’t need the money for many years. If you’re close to needing it, a drop hurts more than the cheaper prices help.
  • Net buyer vs. net holder. Falling prices benefit you only while you’re adding money. Your existing holdings still lose value on paper, so the benefit grows the more you’re contributing relative to what you already own.
  • Cheap isn’t always a bargain. Prices can fall because a company’s prospects have genuinely worsened. This logic is safest with broad, diversified funds rather than individual stocks.
  • The hard part is behavioral. Many people feel the way you do in theory but freeze or sell when a downturn actually arrives. Sticking with your plan through the drops is what makes it pay off.

Warren Buffett famously stated: if you’re going to be buying groceries for years, you want prices to fall. The same rings true for stocks.

Total Market vs. S&P 500 vs. Nasdaq-100: Which Index ETF Fits Your Portfolio?

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Over the past decade the Nasdaq-100 has beaten the S&P 500 by roughly 6 percentage points a year, and the S&P 500 has edged the total market, but the higher return came with more risk and a higher price tag.

Three funds dominate this debate: the Vanguard Total Stock Market ETF (VTI), the Vanguard S&P 500 ETF (VOO) and the Invesco QQQ Trust (QQQ), which tracks the Nasdaq-100. Below is how each has performed over one, three, five and ten years, what you pay for that performance, and how to judge any index ETF before you buy it.

Figures are approximate, as of early October 2026, and drawn from several data providers that differ by a point or two. VTI’s 3-, 5- and 10-year numbers are estimated from its usual gap to VOO.

How they performed

QQQ led VOO and VTI in every period, and its lead widened to about 6 points a year over ten years.

VOO has edged VTI over five and ten years, while the two were level this year.

What the extra QQQ return cost

QQQ’s lead is real, but it came with deeper losses and heavier concentration in a few stocks.

  • Volatility: One analysis put annualized volatility at about 20% for QQQ versus about 15% for VOO.
  • Drawdowns: In 2022 QQQ lost about 32.6% for the calendar year, versus about 18.2% for VOO. Its worst peak-to-trough fall in the last decade was about 39.6%, versus about 34% for VOO in the 2020 crash.
  • Concentration: QQQ holds about 100 stocks, with its top ten near 47% of the fund. VOO’s top ten are near 38%. Technology is roughly half or more of QQQ.
  • Cost: QQQ’s expense ratio is about 0.18-0.20%, against 0.03% for VTI and VOO.

VTI and VOO behave almost identically. VTI adds roughly 3,000 mid- and small-cap stocks, but its top holdings are nearly the same as VOO’s, so the 10-year return gap has rarely exceeded 0.5% in either direction. VOO has led slightly over five and ten years because large caps have beaten small caps.

Valuation and income

QQQ trades at a P/E about 30% above the other two and yields less than half as much.

Metric VTI VOO QQQ
P/E (trailing) ~27-28 ~26-27 ~33-36
Dividend yield ~1.0% ~1.0-1.1% ~0.4-0.5%
Price/book not found ~5 ~9-16

Price/book figures conflict across providers because each calculates fund-level ratios differently, and I did not find a current VTI figure. VTI’s P/E comes from an older comparison, so treat it as a rough guide. QQQ’s higher multiple and lower yield fit a fund full of fast-growing companies that reinvest earnings. Part of its past outperformance came from its multiple expanding, which may not repeat.

Five metrics to validate any index ETF

These five test whether an index ETF does its job cheaply and reliably, whatever index it follows.

  1. Expense ratio. The annual fee is the one cost you can predict. For broad-market index funds, about 0.03-0.10% is competitive.
  2. Tracking difference and tracking error. Tracking difference is how far the fund’s return falls short of its index over time. Tracking error is how much that gap varies. A good fund trails by roughly its expense ratio.
  3. Liquidity. Large assets and a bid-ask spread of a penny or so keep your trading costs low. Small, thinly traded ETFs cost more to trade and carry closure risk.
  4. Concentration. Top-10 weight and number of holdings show how diversified you really are. QQQ’s top ten near 47% versus about 38% for VOO is the kind of gap to notice.
  5. Valuation. P/E, with price/book or price/sales as a cross-check, shows what you pay for each dollar of earnings. It does not predict next year, but a high multiple means you are counting on strong growth.

Returns are not on the list, because past performance mostly reflects what the index did, not how well the ETF is run. Check volatility and maximum drawdown separately to judge whether you can stomach the fund.

Which one fits you

VTI or VOO works as a core holding for most investors, and QQQ works as a growth tilt on top.

  • Choose VTI or VOO if you want broad, low-cost, lower-volatility exposure. They are close enough that the choice is mostly about whether you want small and mid caps included.
  • Add QQQ if you want more technology and growth exposure and can tolerate drawdowns near 40%. A modest slice alongside a core fund is a common approach, and it overlaps heavily with VOO’s top holdings.
  • Remember the trade-off: QQQ has led for over a decade, which does not guarantee it keeps leading.

This post is general information, not personalized financial advice. Consider your goals, time horizon and risk tolerance, or speak with a financial advisor.

Sources

Figures come from search-result summaries of these pages, which I did not open in full, so treat them as approximate.

Gratitude is the Answer

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“Gratitude unlocks the fullness of life. It turns what we have into enough, and more.” — Melody Beattie

Entrepreneur Tony Robbins explained why your brain is working against you every day you’re alive, and why no amount of money or success can fix it. It is not a flaw. It is that your brain was designed to survive, not to enjoy.

Robbins explained that your brain is a two million year old organic device. It was not built for happiness. It was built for survival. It used to look for predators in the grasslands. Now it looks for what people think of you.

You hit the goal. You felt the rush. A week later you were scanning for what was missing. The machine reset and you thought something was wrong with you.

He said the fix is to trade the your expectations with gratitude and your world changes in a second. Gratitude is noticing and appreciating what is good or meaningful in your life—from supportive people to small pleasures like a good meal or a quiet moment outdoors. It can be a feeling that arises naturally or something you deliberately practice. And the moment you stop comparing and start appreciating, suffering and discouragement stop with it.

He said if you cannot find contentment in a conversation with a friend, in your wife’s eyes, in watching your children, then more money will not give it to you. More love will not. If you cannot feel it here, you will not feel it there.

You received the raise and felt nothing in a month. You bought the shiny new thing and forgot it existed. The target moved because the device designed for survival moved it.

Wealth works the same way. You know your savings rate. You know the number. It does not move because math was never the problem. Your brain was not built to register enough. It was built to keep scanning.

Gratitude is the fix because it helps you appreciate what you have and where you are in life. Gratitude is a feeling of thankfulness and appreciation for the good in your life, including the kindness, help, and generosity you receive from others. It means recognizing both what you value and how others may have contributed to it.

In simple terms: gratitude is about noticing the good in your life and being thankful for it.

Short gratitude quotes:
• “Today, I notice the good.”
• “There is beauty in enough.”
• “Small joys deserve acknowledgment.”
• “This moment holds a gift.”
• “Thankful for another beginning.”
• “Ordinary moments, extraordinary gifts.”
• “Some blessings arrive quietly.”
• “Even now, there is good.”
• “I can be grateful and still be growing.”
• “Not perfect, still precious.”
• “Today’s little things matter.”
• “I have reasons to say thank you.”

Gratitude can support well-being and help strengthen relationships by making appreciation more intentional. Think of it as noticing what is also good—not as a requirement to declare that everything is good.

What is Yoga?

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“Yoga is the practice of tolerating the consequences of being yourself.” ~ Bhagavad Git

Yoga is not touching your toes. It’s not standing on your head. And it’s definitely not looking good in expensive yoga pants.

If that’s what you picture when you hear the word, you’re not alone. But the poses, called asana, are only one small part of yoga.

Yoga Is Awareness

At its heart, yoga is the practice of noticing: your breath, your body, your thoughts, and the way you react to them. Awareness is the foundation of everything else.

Yoga Is Quieting the Noise

Most of us live with a constant stream of mental chatter: to-do lists, worries, replaying yesterday, rehearsing tomorrow. Yoga teaches you to turn the volume down. You don’t force your mind to go silent. You learn to watch the noise without being swept away by it.

Yoga Is Being Present

So much of life is spent trying to change what is: how we feel, how we look, how things are going. Yoga invites a different approach. Be present with what’s here, right now, instead of constantly trying to fix it. That doesn’t mean giving up. It means starting from honesty.

You Don’t Have to Be Flexible

This is the most common myth, and the most limiting one. You don’t need to be flexible to practice yoga, any more than you need to be fit to start exercising. Yoga meets you where you are, whether you can touch your toes or not.

The Real Flexibility

Here’s the twist: you practice yoga to become more flexible, just not only in your hamstrings. The deeper goal is flexibility in body, mind, and life: the ability to bend instead of break, adapt instead of resist, and meet change with a little more ease.

So roll out a mat, sit in a chair, or simply take one slow breath. That’s yoga too.

Yoga improves physical and mental flexibility, balance, strength and self-awareness.

What Is Gratitude?

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Gratitude is a feeling of thankfulness and appreciation for the good in your life, including the kindness, help, and generosity you receive from others. It means recognizing both what you value and how others have contributed to it.

Here is a fable on gratitude attributed to Aesop:

Two travelers, exhausted by the midday heat, rested beneath a broad, leafy tree.
“How useless this tree is,” one said. “It produces no fruit.”
The tree replied, “You are enjoying my shade at this very moment, yet you call me useless.”

The lesson: You can overlook the very things that are quietly sustaining you.

Dr. Robert Emmons, perhaps the world’s leading scientific expert on gratitude, argues that gratitude has two key components, which he describes in a Greater Good essay, “Why Gratitude Is Good.”

“First,” he writes, “it’s an affirmation of goodness. You affirm that there are good things in the world, gifts and benefits you’ve received.”

In the second part of gratitude, he explains, “you recognize that the sources of this goodness are outside of yourself.

A commonly retold Zen story:

A man fleeing a tiger climbed over the edge of a cliff and clung to a vine. Below him, more danger waited.
As he hung there, he noticed a ripe strawberry growing nearby. He picked it and tasted its sweetness.

The lesson: Gratitude does not require pretending that danger or suffering is absent. It can mean noticing something good even while life remains uncertain.

You acknowledge that other people—or even higher powers—gave you many gifts, big and small, to help you achieve the goodness in your life.

Note:  Robert A. Emmons, Ph.D., is the world’s leading scientific expert on gratitude. He is a professor of psychology at the University of California, Davis, and the founding editor-in-chief of The Journal of Positive Psychology.

Source:  What Is Gratitude?, The Greater Good Science Center at the University of California, Berkeley https://greatergood.berkeley.edu/topic/gratitude/definition

The Next Crash Is Coming. Here’s Why You Still Can’t Time It.

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Another major stock market crash is coming. Declines of 20% or more have happened repeatedly, and one will almost certainly happen again. The harder question is when, and on that one, history offers little help.

Crashes aren’t random, but they’re not predictable

Crashes tend to follow recognizable conditions: excess leverage, speculative bubbles, or a shock hitting a fragile system. Look back at any of them and the warning signs seem obvious.

That’s hindsight at work. We remember the indicators that turned out to matter and forget the many that flashed and fizzled. Drops of 20% or more arrive roughly every several years on average, but the gaps between them vary widely, which is why the pattern is no use for scheduling one.

Why warning signs fail in real time

  • Stretched valuations. High CAPE ratios did precede the 2000 crash. They also signaled “danger” for years beforehand, including through large market gains.
  • The inverted yield curve. It has preceded most recent recessions, but the lag runs from months to over a year, and markets sometimes rose substantially in between.
  • Sudden shocks. Some crashes had no market-based warning at all. The 1987 crash and the 2020 COVID drop came from events the indicators never flagged.

Two different claims

“A crash will happen eventually” is very likely true. “I can tell you when” is a claim the evidence says almost nobody can back up reliably.

Acting on the second claim is costly. People who sold early on warnings have often missed large gains, and market timing means being right twice: when to get out and when to get back in.

The silver lining

The market has recovered from every crash so far, though the recovery time ranged from months to over a decade. That range is the real risk: not whether you’ll see a crash, but whether your plan can last through one.

So the more useful question isn’t “when will it happen?” It’s “how much of a drop could I stomach, given my timeline?” Build for that, and you won’t need to predict anything.

This is general information, not financial advice.