Energy expenditure is what roots Bitcoin in reality
"Reality" is itself a fairly mutable concept if you're using that term to a refer to system that produces abstract "coins" with values that float against other world currencies in a system of finance that itself consists of multiple layers of indirection that evolved to solve the scaling problems of direct bartering.
"Reality" is itself a fairly mutable concept if you're using that term to a refer to system that produces abstract "coins" with values that float against other world currencies in a system of finance that itself consists of multiple layers of indirection that evolved to solve the scaling problems of direct bartering.