FTA: "And because the actual purchase prices are made visible, there are other interesting dynamics. For example, imagine being able to tell if you’re getting ripped off with what you’re paying for a gym membership or on your Comcast bill when compared to what your friends are spending on the same things.

There’s also the potential to have private accounts that maybe a businessman would only share with his assistant to let them know what’s being purchased and explain things a bit better in the comments. Again, yes the idea is controversial, but there are a lot of interesting things that could come of it, if people are willing to be this transparent."

Owning this data is valuable.