> "You need to learn long hand math because you won't just have a calculator in your pocket." Whoopsie! Everyone has a smart phone. That's a shitty argument, a

> "You need to learn long hand math because you won't just have a calculator in your pocket." Whoopsie! Everyone has a smart phone. That's a shitty argument, and it wasn't even true back in the day (cause every engineer had a computer when doing their work). The argument is that you won't develop a mental model if you rely on the calculator for everything. For example, how do you quickly make an estimate if the result you calculated is reasonable, or if you made an error somewhere? In the real world you can't just lookup the answer, because there isn't one.