Isn't the best thing to do, to encourage people to have more children so we can 'expand' the economy?

Any boom in world economy has to be accompanied by a population increase. This brings things like additional demand for goods and services.

Whilst I am a supporter of Steem and Crypto-Currency in general, I cannot fall prey to being a full on libertarian. Lets not forget that crypto eco-systems have not been around long. The prevailing monetary systems adopted world wide such as central banking have been holding it all up for all this time.