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¿FU*5_³tÓL¸IMO, assuming most tx are inter exchange transfers, hash-rate flippening happens when (1) Block reward becomes nominal and (2) all exchange transfers go over lightening -- if it works.
https://whatsonchain.com/tx/5dbe5d3b7b9a7ca51280bc4399cf98a9ca4e1b3f2af1e7535423858f9fb82413