This is a good overview: https://en.bitcoin.it/wiki/Block_size_limit_controversy#Arguments_in_opposition_to_increasing_the_blocksize https://en.bitcoin.it/wiki

This is a good overview: https://en.bitcoin.it/wiki/Block_size_limit_controversy#Arguments_in_opposition_to_increasing_the_blocksize https://en.bitcoin.it/wiki/Block_size_limit_controversy#Argu... There's a bunch of political reasons on both sizes as well.