motivation #wars
1. revert a bad change?
1. view the history?
1. know why someone changed it?
1. maintain multiple versions?
1. see the diff of two versions?
1. find commit that broke something?
1. have free backup?
1. have non-interfering playgrounds?
1. have automated testing?
1. have automated deployment?
1. forget about ms word comments?
1. contribute to a project?
1. share your code?
1. let other people do the work for you?