-53 karma · joined July 11, 2014
If a scenarios exist that can invalidate your findings, then you use every scientific method to avoid them not enable.
"Pinterest is a pretty big website, so it's unlikely that our experiments affect each other in ways that'd make our tests invalid." << This is the very reason why you will have an attribution problem.
If gold wasn't used as a store of value its value would be very maybe a hundredth of what it is now: Gold-plated jewelry in our modern era is essentially indistinguishable (even at the level of a physics lab using scales/xrays/etc if need be) from solid gold jewelry. Gold, for all intents and purposes, is also "backed by nothing". << again has almost nothing to do with Bitcoin being back by nothing. Gold is the item of value it doesn't need to be backed, it is the back'er.