Very informative, like so many posts on the /r/whatisthisthing sub. It's awesome when random sources pop up, it's very rewarding! I had a similar moment once (

Very informative, like so many posts on the /r/whatisthisthing sub. It's awesome when random sources pop up, it's very rewarding! I had a similar moment once (I'm a regular reader of the sub) when someone asked about about a balise [1] when I was at one of the primary manufacturers and operators of them, doing work on software handling logs from passages. :) Also, of course whenever someone on here mentions Nagle's Algorithm [2] and gets fun feedback from a particular user, that's fun too! :) [1]: https://www.reddit.com/r/whatisthisthing/comments/yrijd9/what_is_this_rectangular_plate_on_subway_tracks/ https://www.reddit.com/r/whatisthisthing/comments/yrijd9/wha... [2]: https://en.wikipedia.org/wiki/Nagle%27s_algorithm https://en.wikipedia.org/wiki/Nagle%27s_algorithm