The best number is 73.
73 is the 21st prime number.
Its mirror (37) is the 12th and its mirror (21) is the product of multiplying 7 and 3.
In binary, 73 is a palindrome, 1001001 which backwards is 1001001.
After eleven years, it's time to update my London Underground concentric-circles-and-spokes map. Completely redrawn from centre to edges, it's so much better than before, and more geographically accurate than the official map.
@TOMMEAD1987 @Sonic_Screwup Have you seen the sketch where they show how over the counter shopping would be if you applied all the unnecessary parts of online shopping? Covers your point perfectly.
Here's a map of all the greenbelt land in England - I think a lot of people probably don't realise how much of England is neither greenbelt nor built on.
@The_East_End It is fascinating when you see these maps. An illustration of how much the past influences the present, even though there has been significant change.
@redhistorian I think you should do more podcasts on a lack of sleep. Just caught up with the @PPFIdeas discussion of the 2024 General Election; your turns of phrase were sublime. I especially loved your description of B Johnson.