You got a lot of correct but verbose responses. Put in layman's terms you had to run 1 + foo(20) again. If 1 + foo(20) were replaced by a complex and long winded function you would have lost all of that state and needed to run it all again. What if 1 + foo(20) had to read several TB of data in a distributed manner. You would have to do that all again.
There are ways around this and of course you could probably develop your own crash loop system in python but in lisp you simply continue where it failed. It's already there.
You mention doing things in Jupyter and ETLs which are often long running. This could be hugely beneficial to you.
There are ways around this and of course you could probably develop your own crash loop system in python but in lisp you simply continue where it failed. It's already there.
You mention doing things in Jupyter and ETLs which are often long running. This could be hugely beneficial to you.