What’s the term for that sort of word use?

Tautology, sort of. In fact, it actually means approximately something along the lines of the repeated terms that have appeared several times over in this sentence.

Your example is closer to redundancy, since you can only look visually.

observed?

‘stupid’

Aye stupid.

Tautology

You can say that again.

Well seeing as how my 4 and 8 year olds need regularly told to “look with the eyes and not the fingers”, I think the answer to what sort of word use is “reasonable”.

I seem to recall Murray Walker was keen on “visually looking”.

Yeah, Murray’s a one off.
Completely, totally, individually unique.
🙂