Depends what I'm looking at. If I'm looking at a website, I think in SQL (cf. dude I can write SO in like 4 minutes ;) If I'm looking at stats/ML stuff, I try

Depends what I'm looking at. If I'm looking at a website, I think in SQL (cf. dude I can write SO in like 4 minutes ;) If I'm looking at stats/ML stuff, I try to think in pictures (usually of probability densities being transformed in various ways), and sometimes slip into "pseudomath," which is basically English that sounds like "argmax integral x filtered by f times hessian of g". If I'm doing information theory I tend to think geometrically or graphically, seeing distributions as points/nodes and then reasoning about what the picture looks like as distances/edges between them grow and shrink. If I'm looking at an attractive member of the opposite sex, a good bottle of wine, or someone that needs cursing at, I think in French.