R.I.P., Tomas Kalibera

Update on 2026/04/20 Here is a tribute written by Professor Jan Vitek, which included much richer information about Tomas: https://prl-prg.github.io/tomas-kalibera.html I hate writing yet another RIP post, but the other day, I learned on Bluesky that Tomas Kalibera had passed away. I don&rsquo;t really know Tomas well, and have never met him in person, but I just to write down a couple of things…