This is LIQUIDITY.

Liquidity is how easy and fast you can sell your crypto without messing up its price.

High Liquidity: Your crypto is like a super hyped sneaker. Everyone wants it, so you can instantly sell it for the current market price. Smooth.

Low Liquidity: Your crypto is like an old, dusty shoe. Nobody's buying, so you might have to dump it for way less just to get rid of it. Not ideal.

Basically, it's about how quickly you can turn your crypto into cash without taking a major L.