Pi !
While I'm preparing a post on random nature of ROC, let's celebrate this point. I was wondering which next number would trigger me, tried to check perfect squares, cubes... Nothing clicked. But today I saw 314 and it was like meeting an old friend.
It's totally irrational. And I'm not talking about Pi. Though it is totally irrational. Now I'm talking about my feelings. I don't know why, but this 314 always catches my attention. In school I managed to recite the first 23 decimal digits.
One of my schoolmates once stunned me. He totally believed that Pi = 3.14 15 16 17 ...
The collection of facts and warm memories seems to be endless. Donald Knuth decided to version his famous TeX program by revealing more and more digits of Pi, because that's how path to the perfection works. There is a serious biological article where biologists discovered a stunning property of anthill have circumference "approximately three times" larger then the diameter of the heap.