That is certainly one underlying problem with Bitcoin and some alts. But as we have seen over time Bitcoin generally solves the problem it has (like it did here
the past August). For the future I am not worried, and think they will also solve the scaling problems had. Who knows bitcoin may not be the day to day coin
that is used for transactions. There may just be a faster one like Ethereum or Byteball or anonymous coin that sends much faster than those two.