That does make me ponder if we will realize a scarcity of the production of new  humans in our own lives. We either invest upfront in kids, or you invest in bitcoin and leave the family behind. 

So even if you end up with a big stack, in a decreasing population-world paying a younger healthier Real Human to take care of us as we age may become very, very expensive. 

So I'm just not sure how dreams of wealth in a world with a decreasing population work out. 

 Investing in humans reduces the ability to invest in Bitcoin.

Everyone who faces this choice is actually lucky. Many people can only invest in Bitcoin. 

 that's a great reason to be happy when the price goes down. Humans are just investing in each other at the moment...  the extra mouths to feed are grinding down our collective store of value.