That’s just science

People say this, but almost every time the time interval is left off it's hours.

This is new for me. Must be some engineering thing. I'm a physicist and and I feel guilty if I leave out some units just because, lol.

Maybe it's comparing the total power rating of the brain to a data center dedicated to AI

Which is also a stupid comparison because the data cenrer will be processing a lot of parallel requests. That's why you want the unit to be energy rather than power in this case

Or maybe it's all made up.

That'd need watt hours though. Meme is only showing the instantaneous power required to conjure the image for an infinitesimal amount of time - you cant do any useful 'work' with it unless the time is accounted for. Watt seconds maybe.

What makes me skeptikal of this data though is that the correct sciencing term for a billion watts is the well established 'jiggawatt'. In this context I'd have also accepted the Canadian spelling 'jigglewatt'.

https://en.m.wikipedia.org/wiki/Watt

No

That watts by themselves mean nothing with regard to energy consumption.

Also, it literally is an energy unit used in measurements. It's meant as a continious power. Ie. Your active imagination consumes around 12 watts of power, not "rendering one image"