Monkeygrinder's Organ
Dodgy geezer swilling vapid lager
But isn't that one of the things with exponential growth, it goes from numbers that aren't huge, to numbers that are very quickly, and in the early stages it doesn't look anything to worry about? Have you done the back of a fag packet maths for it, it's quite interesting/scary.
Plus presumably at this stage you'd expect any initial exponential growth in Omicron to be masked to a degree by the relatively high but steady numbers of Delta cases, if you're looking at overall figures. By the time that shows as exponential growth Omicron would be well into that curve.