Tl,dr: each additional kB after 1mb adds an additional 80ms in propagation delay. It’s not just bandwidth that’s the problem. Nodes need to validate the block, then communicate that block to other nodes who also need to validate. Big blockers are drinking Roger Ver koolaid. The man doesn’t even know how to program, yet has convinced an army of redditors he knows best.
why does increasing propagation delay lead to centralization?
Mining a block is suppose to be a lottery, not a race.