I love that he chose bus tickets, because I used to collect UK bus tickets. I started because I used to repair bus ticket machines (made by Almex Control System

I love that he chose bus tickets, because I used to collect UK bus tickets. I started because I used to repair bus ticket machines (made by Almex Control Systems ltd) in the early 1990s. I was putting a few examples on Instagram, but I don't really understand how Instagram chooses to crop images so I stopped until I have time to work it out. https://www.instagram.com/p/B1JpyfXHLRG/?utm_source=ig_web_copy_link https://www.instagram.com/p/B1JpyfXHLRG/?utm_source=ig_web_c... If you're interested in classifying things you can sort tickets out in several ways -- by bus company operator, by year, by colour, by machine. If you're interested in social history you can use tickets to illustrate some small points - here's a "workman return" which would probably have a different name today: https://www.instagram.com/p/B1Lpy4kHKWR/?utm_source=ig_web_copy_link https://www.instagram.com/p/B1Lpy4kHKWR/?utm_source=ig_web_c... Through this I met other transport ticket collectors, and other transport enthusiasts ("bus spotters", railway enthusiasts). Paul starts his essay by mentioning natural ability. He then describes this obsessive interest as a third requirement, which implies to me that obsessive interest is not necessarily part of natural ability. I'd be interested to know whether obsessive interest is something that can be learnt, or whether it's a feature of neuro-diversity and thus part of natural ability. One of the diagnostic criteria for autism is "fixed and repetitive interests". I'm also interested to know whether people think their interests are obsessive. I stopped collecting transport tickets in the late 1990s, but I only found out a few years ago that the amount I know about UK bus tickets and ticket machines is unusual.