The energy cost is born for two purposes, neither of which is entertainment: 1) reach consensus on tx history (without being hampered by notions of weak subjec

The energy cost is born for two purposes, neither of which is entertainment: 1) reach consensus on tx history (without being hampered by notions of weak subjectivity like PoS is) 2) provide a somewhat fair distribution mechanism for new coins (something PoS fails at completely)