Less shitty image version, too:

I don’t even remember where I learned it, I think it’s some meditation thing? I’ll specifically think, “I wonder what my next thought will be.” And then try to 1.) keep it quiet as long as possible and/or 2.) if I fail, just try to pay attention to what the thoughts were. Simple enough idea that it stuck with me, you can try it at your desk, and it’s kind of a fun little challenge. But also kind of impossible.