OK, according to the "global wealth pyramid" [1], a graphical representation of global wealth distribution, the bottom 3 billion own less than 10'000$. I'm not saying that being poor is equal to lacking shelter, but there is probably a correlation there.
3d printing homes is cool and might have potential, but it won't help a poor farmer in rural Azerbaijan get shelter. It would be great if the media could stop presenting this as a panacea to homelessness.
[1] https://www.credit-suisse.com/corporate/en/articles/news-and...