plotting all permutations of 7 items #plottertwitter

Sometimes a vertical line will e.g. jog left before going back right, instead of taking a straighter path to its destination. Just wondering why is that?

Swapping 2 items can move at least 1 but not always both items into their correct indices, that's why some items swap more than once

@nukCZ_RS I've been staring at this for the past five minutes 👀

@nukCZ_RS Same but all day

That’s a lot of permutations 😍

5040, it takes forever!

I was just retweeting following machine. Imagine such a machine could print your patterns in the beach. You have beach art washed away by the waves! Or making marks in bricks. Every brick can be sponsored for a village in Africa.

This is very similar to Genji incense in Japan.

didn't realise this was a 33 second video until I was already 5 minutes in love it

There's an incense-guessing game in Japan which uses symbols just like this to represent all combinations of five different incenses -