I have thought a lot about what trapped intangible value all of us have, such that ‘if’ there was a market for it, we could get paid. Our personal data, with opt-in volunteering, is certainly at the top of the list. The other potential personal markets that have very similar characteristics (to personal data), but don’t exist are:
1) Home equity: Americans have $6.2T in home equity that could be “sold”
2) Driving data: get paid for carrying free sensors so that one helps map the world, so we get to self driving sooner in more cities
3) Opinions: large scale polling for everything, from movie trailers to startup landing pages to new products/ads — everything
4) Fact checking: crowd sourced journalism; often Reddit crowds figure out the truth/source faster than pro journalists; there ought to be a market for “if I know something, Eg some insider info, I could improve on the state of public truth”
5) Goodwill: one of the most amazing things I stumbled upon was www.reddit.com/r/borrow; people ask for money and strangers give money; I would never have predicted this to exist. I believe goodwill and benevolence is one of the largest untapped markets.
There are probably several other (and better) examples: point is that royaltiess/annuities from such markets could be part of UBI in the future.