There were $10 in bitcoin transactions yesterday. You start to tax 30% today, how much tax will you collect today? Close to 0. Why?
There were 10 birds in the tree. Bang, you shoot one down. How many birds are there left in the tree?
昨天比特币交易额为10美元。你今天开始征收30%的税，你今天要征收多少税？接近0。为什么？
树上有10只鸟。砰，你击落一个。树上还剩下多少只鸟？