I used a memory palace for my A-Level Law exams. I was able to remember names and details for up to 250 different cases very easily, in fact so easily it felt like cheating.

The trick is to embrace incredulity. The more bizarre and strange the “tags” you assign to what you remember, the easier they stick in your head. It feels daft and cringeworthy, but it really, really works.

For this, however, I’d argue a memory palace is overkill. And I still don’t know how well it lends itself to remembering numbers by rote.

Consider this: how many telephone numbers have you memorised?

I can recall four of my own, each of my parents, my wife, and a handful of home phone numbers too.

That’s easily 100 digits in a specific order. Perhaps it’s possible to chunk the 100 digits of pie into smaller pieces, and memorise them like phrases, just as we do with phone numbers.