What did Jack Dorsey say about bitcoin 2021?

Those are Jack Dorsey’s words from Bitcoin 2021 in Miami. In less than a year since this statement, Dorsey has left Twitter and rebranded his other major company, financial services provider Square, to Block, further cementing his belief that Bitcoin is the most important thing in our lifetime to work on.

Is Jack Dorsey's block building an open bitcoin mining system?

Jack Dorsey's Block to build an open bitcoin mining system 14 Jan 2022 10:01 In October, Dorsey said that Block, formerly Square, was considering building a bitcoin mining system based on custom silicon and open source for individuals and businesses worldwide.

Why does Bitcoin block reward work?

This works today because the block reward is more than one bitcoin and cash/debt is so cheap (if you factor inflation into loans, most loans have a negative real interest rate as a result).