"Katas are the same problem solved in different environments." Are you sure about that? I thought it was more solving the problem, then solving it again more e

"Katas are the same problem solved in different environments." Are you sure about that? I thought it was more solving the problem, then solving it again more efficiently / differently in the same environment. Like using recursion the second time around, not changing languages. "Don't code your CSS from scratch, use Bootstrap or similar. Don't create an auth system, use the one that comes with your framework." Definitely true for productivity, but a lot to be gained in experience by knowing how to roll your own.