>There's pretty much nothing that fits this bill. The OP's assertion was that bitcoin must have some use other than as an investment vehicle if it is to surviv

>There's pretty much nothing that fits this bill. The OP's assertion was that bitcoin must have some use other than as an investment vehicle if it is to survive long term. You asked the OP "On what principles do you base this assertion?". If you arguing that bit coin is useful outside its use as an investment vehicle, and must be so to survive long term, you are agreeing with the OP. If you arguing that bit coin is useful outside its use as an investment vehicle, but it doesn't have to be to survive long term, you need to provide an example of something that is not useful outside it's value as an investment vehicle that has survived long term.