> The material cost of most raw materials isn't very high, but ruining something you've already spent hours crafting is extremely costly. Thanks to version-con

> The material cost of most raw materials isn't very high, but ruining something you've already spent hours crafting is extremely costly. Thanks to version-control software it's also incredibly cheap to experiment freely with an existing code-base in a completely non-destructive fashion. I see no reason to treat existing code as fragile or precious.