jm NASÇþß¼^> ·¤vv"ö£%ZæãmÔLThe argument is that a big miner can DoS the network by tying up a big block in knots. This is stupid for multiple reasons described in the white paper.
https://whatsonchain.com/tx/479a0f8eea4df47c8bd13941a8e362c9ed5b4679a771f601c72ec9827a422161