> That said, I'm not sure if mining is the right approach, simply because the proof of work is completely arbitrary for some currencies (e.g. Bitcoin) and has n

> That said, I'm not sure if mining is the right approach, simply because the proof of work is completely arbitrary for some currencies (e.g. Bitcoin) and has no real value. Exactly. > Mining is only necessary to lower the barrier of entry for the consumer, Even now there is a barrier of entry, which is the processing costs. The goal is to lower them, not to force burning the more hydrocarbons for every transaction.