POW CHAIN 51% ATTACK THEORETICAL COST in $ #powstr 
https://image.nostr.build/ff04d6cf0926ec0fffcb05a6deeb38e4ac47c9db333b256a991a1076d6eea88c.png
Top coins are BTC LTC in terms of safe HASH - NODES - LOW FEE PAY /EASE OF USE
SOV = BTC only