I think it's wise to be a bit deliberate when turning on globstar in bash. The main cost is occasional slowness on big trees. It's OK to turn it on for general

I think it's wise to be a bit deliberate when turning on globstar in bash. The main cost is occasional slowness on big trees. It's OK to turn it on for general purpose things, but for scripts the bigger concerns are portability and the possibility of unexpectedly broad expansion.