[wing-_-nuts]

Yep, people's behavior respond to incentives, and in most developed economies, each kid represents a major sacrifice instead of the 'investment' they used to be.

If you want more kids, you have to make the cost of having them lower. This means building more housing, subsidizing childcare like france and sweden, but stronger, and making higher ed affordable.

Now all that costs a lot of money. To do that, we'd need to cut spending on other things, and raise taxes. I don't buy the assertion from Zeihan and others that it's impossible though.