Time = money - which is your labour; I get what you are saying - how to apportion value to something you can't see or touch? That's why I think the cryptos that retain value will be the ones that do something tangible.....provide a service, etc. and have differentiation.....Ripple is being investigated for adoption by the banking sector; Dash is an Apple pick; Lisk provides a service and enables the functionality of further cryptos, etc. Ultimately, cryptos that survive will have to have functionality, otherwise why bother?? And I get what you are saying about the measure - that's why I think eventually, crypto might resurrect the gold standard as a measure of value....as opposed to the value of a service....Bitcoin is valuable for what it allows - the digital exchange, but also the brand has established trust.