that means that this segwit2x fork will activate only if miners built a block with more than 1mb? And if not the network will be stall until this happen? lol
What a crap is this

Nowadays I have seen a lot of the miners wasting the available block space, by refusing to include low-fee transactions. Yesterday I saw F2Pool mining a block of just 111KB. This needs to be stopped and making 1 MB the minimum size is a good step in ensuring that.