I mused with my partner whether archaic browser support was a form of premature optimization. Some things are easy and can be wrapped in a function to make them

I mused with my partner whether archaic browser support was a form of premature optimization. Some things are easy and can be wrapped in a function to make them simpler. Others, not so much. I don't plan on testing in more than 6 browsers/versions on the 3 big platforms before release. Thoughts?