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Personal finance10 July 2026· 7 min read

The 4 myths that keep you from investing (and why doing nothing is already a choice)

The founder of Rebalix
The 4 myths that keep you from investing (and why doing nothing is already a choice)

Many people would like to start investing, but keep putting it off: «I don’t have enough money», «I could lose it all», «it’s for experts». Meanwhile large sums sit idle in the bank for years, and goals like retirement, financial independence or the kids’ education drift further away. Often the real obstacle isn’t resources: it’s four wrong beliefs. Let’s dismantle them one by one — without telling you what to do, just how things stand.

First of all
This is an educational article, not investment advice: we are not telling you to buy, sell or hold anything. Every choice stays yours and must fit your own situation.

Myth 1 · Saving and investing are opposites

Saving protects, investing grows: allies.

Saving is associated with prudence, investing with something risky and uncertain. In fact they aren’t alternatives, but two tools with different jobs. Saving builds a safety net: covering surprises, planned expenses, having cash available now. Investing is there to grow capital over time.

Thinking you must choose between them is a mistake: sound money management wants both. An emergency fund can stay liquid and accessible, while capital earmarked for distant goals can be invested to seek growth above inflation. They aren’t enemies — they’re allies.

Myth 2 · If I invest I could lose everything, so better not to

The question isn’t «whether» to risk, but «which» risk.

It’s the most common fear: investing gets linked to market crashes and stories of people who lost money speculating. But risk doesn’t depend on whether you invest, it depends on how: there’s a chasm between buying highly speculative instruments and building a diversified portfolio with a long-term horizon.

Market history shows it well. As you change the mix between stocks and bonds, both how much you can gain and how much you can lose in a bad year change. It’s a trade-off, not a flaw: more stocks lift the average return but widen the swings. It’s no coincidence that «all-in-one» funds like the LifeStrategy come in grades — 20, 40, 60, 80% equity.

How different asset mixes perform
From left to right, from 100% bonds to 100% stocks. For each mix you see the best, average and worst annual return ever recorded. It’s the trade-off in one picture: more stocks lift the average, but widen the swings — how much you can gain, but also lose, in a bad year.
best yearaverageworst year
-40%-20%0%+20%+40%+60%0102030405060708090100less risk% stocksmore risk
Calendar-year returns of the US stock and bond markets, 1926-2024. Source: Vanguard — Model portfolio allocation. These are historical figures in US dollars, shown to illustrate the risk/return trade-off: past returns don’t repeat, and a different market or period would give different numbers.

The chart shows how far a bad year can fall. But there’s a second, less intuitive effect: losing and recovering aren’t symmetric. Lose 50% and you don’t get back to even with a +50%, but with a +100% — because you restart from a smaller base. The deeper the hole, the more the required gain explodes.

Losing and recovering aren’t symmetric
A loss isn’t recovered with an equal gain, but with a bigger one — because you restart from a smaller base. Move the slider and see what it takes to get back to even.
Set the loss — drag
Loss50%
To break even you need
+100%
The required gain explodes as the loss approaches 100%.
Loss
Gain to recover
10%
+11%
20%
+25%
30%
+43%
40%
+67%
50%
+100%
60%
+150%
70%
+233%
80%
+400%
90%
+900%
99%
+9,900%
It’s just maths: it holds in any currency and any market. A 99% loss would need +9,900%.

And how much time does it take to climb back? Here the numbers need caution. The longest and most-studied series are those of the US market, in dollars — that’s where the most data and research exist. The academic reference is the Global Investment Returns Yearbook by Dimson, Marsh and Staunton (over a century of data): historically, recovery has ranged from a few years to more than a decade, depending on the crash.

Two caveats change the figures a lot. Dividends: reinvested, they shorten the recovery; the scariest numbers you read («1929 took over fifteen years to regain its highs») usually look at price only and ignore dividends. Currency: those figures are in dollars; a euro investor also carries the exchange rate, which can make the same fall deeper or shallower once converted.

So far we’ve talked about falls that, sooner or later, were recovered. But there’s an extreme the US averages never show: entire markets that went to zero.

The extreme case: markets that went (nearly) to zero
The historical averages come from the United States: the market that survived and won. But a single market can go all the way to zero — the case US data, by construction, never shows.
Market
Period
Main cause
Outcome
Russia
1917–1918
Bolshevik Revolution
The Saint Petersburg exchange closes and shares are nationalised: a total loss for investors.
Germany
1945
End of the Second World War
The Reichsmark is wiped out; stocks and bonds lose all value.
China
1949
Communist Revolution
The Shanghai exchange closes for decades; stocks and bonds cancelled.
Argentina
2001
Sovereign default and hyperinflation
Not a wipeout, but a loss of more than 90% in real terms.
Venezuela
2016–2020
Hyperinflation and economic collapse
Real value wiped out, while the index rose in nominal terms on inflation alone.
Zimbabwe
2008
Extreme hyperinflation
Stocks and currency devalued; the market closed and later reopened with a new currency.
It’s to reduce exactly this kind of risk that, historically, many investors spread their capital across markets, currencies and instruments. This is an observation about how investors have behaved, not a suggestion about what to do.

And there’s something almost everyone ignores: not investing is a risk too. Cash sitting in the bank keeps the same number — ten thousand euros stay ten thousand euros — but its purchasing power changes. If prices rise, the same amount buys less and less: capital loses real value. There’s no risk-free choice; there’s only the choice of which risk to face — the temporary volatility of investments, or the near-certain erosion of purchasing power. Here’s how much the second one weighs:

How much inflation erodes
A sum sitting in cash keeps the same number, but its purchasing power changes. Set how much and for how many years: see what’s left, in today’s money, with inflation at 2%.
%
Purchasing power left
€6,730
Lost to inflation
€3,270 (32.7%)
€0€5k€10k048121620years
At 2% inflation, €10,000 today is worth €6,730 of purchasing power in 20 years — like losing €3,270 (32.7%).
Why exactly 2%?
It’s not a random number: it’s the ECB’s target for «price stability». A little inflation (not zero) keeps a safe distance from deflation and leaves room for monetary policy. Which means 2% is the good scenario, the stated one: when inflation runs higher (as in 2022-2023), the erosion is worse than this.
A constant-rate projection, purely illustrative: not a forecast of future inflation. The number in your account doesn’t change — what it buys does.

Myth 3 · You need a lot of money to invest

Regularity beats size: a little, but early.

The idea that investing is for big fortunes belongs to the past. Today you can start with modest amounts and build your capital gradually. What matters most isn’t the starting figure, but regularity.

Paying in a sum every month lets you harness one of finance’s most powerful principles: compounding. Returns generate further returns, creating a «snowball» effect that grows with the years. For many investors the decisive factor isn’t how much they invest at the start, but how early they begin: time is the most valuable ally.

Myth 4 · You must be a finance expert

Discipline matters more than forecasting.

Some imagine investing means hours on charts, following economic news and predicting markets. Most research on personal finance points instead to a simple conclusion: the outcome depends more on behaviour than on the ability to forecast. You don’t need economists or traders; you need, far more:

Skills help, but discipline matters much more.

The uncomfortable truth: not deciding is already a decision

Many believe leaving money in the bank means staying neutral. It doesn’t: holding all your wealth in cash is an investment choice in its own right. You’re choosing an asset that gives nominal stability but that, over the long run, can lose real value to inflation. Not investing doesn’t avoid all risk: it simply accepts a different one.

Not deciding doesn’t shield you from risk. It just picks which risk you run.

In conclusion

Investing isn’t betting, chasing quick gains or becoming a market expert. It’s using time and the growth of the economy to try to protect and grow your wealth. Those who build long-term results aren’t necessarily the richest or the most skilled: often they’re simply the ones who got past their fears and started.

Because the highest cost, over the long run, isn’t always investing. Often it’s waiting too long before doing so.

Keep reading
Vanguard LifeStrategy: a diversified «all-in-one» portfolio, under the microscopeBond glossary: your broker’s words, in plain languageEuropean government bonds: what they are and how yield is calculatedExplore government bonds on Rebalix
Disclaimer
Informational and educational content, not financial advice or an investment solicitation. The inflation calculator is a hypothetical constant-rate projection, not a forecast. Past results are not indicative of future ones. Every decision must fit your own situation.
Author
The founder of Rebalix
Founder of Rebalix. He spent decades in banking — from traditional banks to senior roles at firms specialised in wealth management, corporate and investment banking. After seeing how finance works from the inside, he built Rebalix to bring that same rigour to the side of the self-directed investor: explaining in plain words how a portfolio actually works — method, costs and discipline — without jargon or easy promises. He does not provide financial advice: the content is for informational and educational purposes.
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