It’s hard to explain “from scratch”. A blind person can certainly perform the task. But, uh, how do you translate the image to something sensible?

Heck, I’d bet high school kids that have never seen the ocean could be fooled often with images that aren’t pristine sand and deep blue sea.

I have a low level representation that encompasses a bunch of sensory memory and imagination, and a high level representation “beach”. It takes a while for me to believe your low and high kinda match mine. I suspect it takes you a while to believe in me too.

It’s hard,partly because computers are dumb. It’s also hard because I can’t really communicate my low level understanding of beach.