How long did it take to get to the halfway decent (and I do mean halfway) browser that it is from the rewrite? How long would it have taken to get there /withou

How long did it take to get to the halfway decent (and I do mean halfway) browser that it is from the rewrite? How long would it have taken to get there /without/ the rewrite? EDIT: If you're going to downvote at least explain why...