Why This Exists

Why Insurance Exists

Every month, you pay premiums for disasters you hope never occur. Health insurance in case you get sick. Car insurance in case you crash. Home insurance in case of fire or flood. Year after year, you send money to companies that seem to fight every claim. If you're lucky, you never get anything back.

Insurance feels like a bad deal. You're paying for something you don't want to use. The company profits when you stay healthy, drive safely, and avoid misfortune. When something does go wrong, collecting what you're owed often feels like a battle. The whole system seems designed to take your money.

Yet insurance remains one of the largest industries in the world, touching virtually every aspect of modern life. Why do we keep paying for something that often feels like a scam?

The Problem This Was Meant to Solve

Life is full of risks we can't predict or prevent. Your house might burn down. You might get cancer. A car might hit you. These events are unlikely but devastating when they occur. The financial losses can be catastrophic—wiping out savings, destroying livelihoods, leaving families destitute.

Individual savings can't adequately protect against rare but costly disasters. To self-insure against every possible catastrophe, you'd need enormous reserves that most people can't accumulate. Even wealthy individuals can face losses beyond their means. How do you prepare for a $500,000 medical bill or a $2 million lawsuit?

Insurance solves this through risk pooling. Many people each pay a little into a common fund. When someone in the pool suffers a loss, the fund pays out. Most people will never collect; their premiums subsidize the unlucky few who do. Individually unpredictable risks become collectively manageable.

This pooling mechanism transforms random, catastrophic losses into predictable, manageable costs. Instead of facing a small chance of a devastating bill, you face certainty of a modest premium. For most people, this trade—eliminating unpredictability at the cost of guaranteed payments—is worth making.

How It Actually Came to Exist

The concept of spreading risk is ancient. Chinese merchants distributed cargo across multiple ships so no single sinking would ruin them. Babylonian traders developed risk-sharing agreements for caravans. Wherever commerce created concentrated risks, people found ways to disperse them.

Modern insurance emerged from maritime trade. In the 17th century, London coffeehouses became meeting places where merchants would agree to share losses from shipwrecks. Lloyd's of London began as a coffeehouse where underwriters gathered to assess and distribute shipping risks. The fundamental innovation was making risk assessment systematic—calculating probabilities and pricing premiums accordingly.

Life insurance developed separately, initially facing moral objections that it was betting on death. But as actuarial science improved, allowing accurate mortality predictions, life insurance became respectable. Families could protect against the death of a breadwinner. The randomness of death was tamed into a calculable, insurable risk.

The 20th century saw explosive growth in insurance types. Auto insurance became mandatory as cars became common and crashes became frequent. Health insurance evolved from small mutual aid societies into the massive industry that now dominates American healthcare. Homeowners insurance became required by mortgage lenders. What was once optional protection became woven into the fabric of economic life.

Government often stepped in where private insurance couldn't work—Social Security provides retirement and disability insurance, Medicare insures the elderly's health, flood insurance covers risks too concentrated for private markets. The boundary between public and private risk pooling continues to shift.

Why It Still Exists Today

Insurance persists because the underlying math works. When risks are independent and assessable, pooling benefits everyone. The insurance company makes money on average; the insured get protection against catastrophe. Both sides gain from the transaction, even when specific claims create conflict.

Modern life has created more risks to insure against, not fewer. Expensive medical treatments, valuable property, complex liabilities—the potential for devastating loss has grown. At the same time, financial systems have come to rely on insurance. Banks require homeowners insurance. States require auto insurance. Hospitals depend on health insurance. The system is deeply embedded.

Regulation reinforces insurance's role. Mandatory insurance requirements ensure broad risk pools, which makes coverage more affordable and available. Without mandates, healthier and safer individuals might opt out, leaving pools of only high-risk people—the "death spiral" that can collapse insurance markets.

Technology has made insurance more sophisticated but not simpler for consumers. Big data allows more precise risk assessment, which can be good (pricing that reflects actual risk) or bad (pricing that makes coverage unaffordable for those who need it most). The fundamental tension between accurate pricing and broad access plays out across every insurance market.

What People Misunderstand About It

The biggest misconception is that insurance should be "fair" in the sense of getting back what you pay. Insurance is specifically designed so that most people don't collect. If everyone got their money back, there would be nothing left for those who suffer losses. Paying premiums without claims isn't being cheated—it's the system working as intended.

Many people don't understand that insurance companies' profits don't come primarily from denying claims. Most profit comes from investing premiums between when they're collected and when claims are paid. The "float" of collected but not yet dispersed money generates returns. Insurers actually want to write more policies, not fewer claims.

Another misconception is that insurance causes higher prices. When healthcare costs rise, people blame insurance, but the causation is complex. Insurance changes how people use services (moral hazard), but it also enables access to care people couldn't otherwise afford. The relationship between insurance and prices varies by market and context.

Perhaps most importantly, people misunderstand what insurance can and can't do. Insurance transfers financial risk, not actual risk. Having health insurance doesn't make you less likely to get sick; it just means you won't go bankrupt if you do. Insurance is a financial tool, not protection from the randomness of life. It exists because bad things happen unpredictably, and pooling resources is the best way we've found to manage that uncertainty.