How Hard Could It Be?: Five Easy Ways to Fail
Joel Spolsky guest writing for Inc.com:
Software development takes immense intellectual effort. Even the best programmers can rarely sustain that level of effort for more than a few hours a day. Beyond that, they need to rest their brains a bit, which is why they always seem to be surfing the Internet or playing games when you barge in on them.
It would be really nice if more people understood this. (via)
