What if?

What made me happy today? What if?
It's Tuesday, and that means there's a new 'what if? xkcd'! I've mentioned xkcd before, it's one of my favorite webcomics.
In 'what if?' xkcd answers a reader's science-related question. Spoiler alert: they often end in catastrophy.
Looking for some extra laughs while reading this webcomic? Hover your mouse over the images, you'll get a little bit of extra text.
Enjoy reading!