Earlier quoted context omitted.
He was the Wrangler at the Univ of Cambridge (best Undergrad in Math).
And it's no mean achievement. Here is the list of Senior wranglers on wikipedia. Check out his peers to see what mathematics possibly missed out on https://en.wikipedia.org/wiki/Senior_Wrangler
It was pretty clear that most politicians, let alone leaders, didn't know what "exponential" meant over the pandemic.
At a time where technological advance has vastly outpaced politics (Joe Biden was around 65 when the first iphone came out) I think it's quite remarkable to have a Maths-CS major heading up a (small) nation.