I have the habit to do list of things. I would not say it is a special interest in itself but it is always related to some things I find interesting. I will list brewing ingredients (brand, colour for malts, bitterness and taste for hops, etc. ), roleplaying games spells, victory conditions in board games, etc. When the data is quite simple and unstructured (for example the list of the seven major forms of lightsaber combat in Star Wars) I will merely memorize it. When it is more elaborate I will create elaborate charts and diagrams, usually using Google Docs.
I think this is quite common for many people here. But what I think is weirder is that simply going through those lists (either mentally or by reading them) not only relaxes me but is sometimes physically pleasant. It can suscite a feeling of elation and send some waves of wellbeing and pleasure in my spine. The effect is difficult to explain and not systematic, but I was wondering if anyone can report something similar?
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ouroboros
A bit obsessed with vocabulary, semantics and using the right words. Sorry if it is a concern. It's the way I think, I am not hair-splitting or attacking you.