There's that iceberg thing again

What's with the iceberg analogies? 

As we all know, an iceberg has about 10% that’s visible above the surface. The smallest part is visible above the surface. The vast 90% or 95% is below the surface. It’s hidden. You can’t see it. Science has shown that it is exactly like that with the human mind.

Who has 10% of their mind showing? Because they should probably get that looked at.

Also, if 10% is visible and 95% is hidden...oh my god! I found the missing 5% from that other guy!

Amount of people

This one is absolutely rampant. I really hadn't noticed it that much until recently, and now it's like everyone is doing it wrong all the time just to taunt me. So prepare to learn, people.

"Amount" is only used with something that cannot be quantified in numbers.

I have a large amount of happiness.

I have a large amount of money.

You could argue that "money" can be counted in numbers, which would be true, except we're not specifying how to count it. It's a generic term, not a specific form of money like dollars, euros, pesos, caps, goats, or whatever other form of money you feel like using. For terms like this, you use "amount."