“It’s hard to say what will happen when it starts reaching the limit. Right now, the coin is working, Bitcoin and Litecoin are working because the mining reward is paying for the security… When you rely on fees and if the fees aren’t enough because the block size is constrained, then what happens? The security will drop. Is it better to have some small inflation every year and have that fixed and have that pay for the security or can transaction fees pay for security?”
-- Charlie Lee in https://www.youtube.com/watch?time_continue=98&v=aHOcTllK1_c