Comment by paavoova

> I don't think I'll ever use cat again if I can help it.

I just tested simple concatenation and bat is over 10x slower:

  $ time cat 1GiB 1GiB 1GiB 1GiB >/dev/null
  real 0m0.414s
  user 0m0.014s
  sys 0m0.400s
  $ time bat 1GiB 1GiB 1GiB 1GiB >/dev/null
  real 0m4.257s
  user 0m1.659s
  sys 0m2.594s

Seems like a lot of these "modern" replacements lose what the original simpler utils do well.