I find that writing unit tests actually increases my programming speed

Comprehensiveness is the enemy of comprehensibility.

When you actually sit down to write some code, you learn things that you didn't get from thinking about them in modeling terms...there is a feedback process there that you can only really get at from executing some things and seeing what works

In almost all cases, I’m opposed to setting aside time for refactoring. In my view refactoring is not an activity you set aside time to do. Refactoring is something you do all the time in little bursts.

Never in the annals of software engineering was so much owed by so many to so few lines of code

I can only think of so many good ideas in a week. Having other people contribute makes my life easier.

I find that writing unit tests actually increases my programming speed