Why do we short other products instead of directly shorting the big pie?

This loss has been suffered countless times this year.

This behavior has frightened countless people.

If the big pie wants to rise, it must suck blood.

Even if it goes sideways, it needs a lot of capital support.

What's more, the pie is above 9.

So shorting the big pie is not cost-effective because it may not fall. $BTC