For a deeper dive, my Medium post: medium.com/@danhedl/pow-i…
TL;DR - check out this thread 👇
#Bitcoin’s PoW was originally invented as a measure against email spam. Only later did Satoshi adapt it to be used in digital cash. @hugohanoi
- The energy spent is per block, not per transaction
- The economic density of a #Bitcoin transaction is increasing (Segwit, Lightning)
- Should be defined by security of economic history @LaurentMT



Fusion power and other cheaper energy sources, will solve major problems for humanity like fresh water shortages. Desalination stations requires large amounts of energy.