OK. So what in the heck is going on with all these variants? Why is everyone so worried? And how do they work?
To answer these questions, let's go back in time to January 2020, when we were all blissfully going about our lives, eating in restaurants, cramming into elevators at work and dancing at house parties on the weekends.
Back then, the coronavirus looked a bit like this (well, not really, but if it was made of Legos, it would look like this).