LETTERING WITH ROUND HOUND / by Hannah McCormick

I found this through an article that said it was supposed to be soothing and mesmerizing, but it is neither for me. Instead I am fascinated and anxious. I want to know what medium he's using to thin his paint (a retardant? a thinner? both? and what kind of paint), and if that's plexi he's painting on? So many questions. One time my father's friend told me the only way to sustain myself practically was to become a sign painter, so there's a lot of vague motivation. Spoiler alert: I'm not a sign painter.