The dolly zoom effecf GIF

Tamron has a 18-400mm lens for about $700, not too bad

It's a combination of zoom with dolly in/out while maintaining the perspective focused on the subject. In this case, the concrete block.

Yes but how does it allow us to see the top of the block in one "frame" but not in the other?

I think it's the angle of the lens, when the dolly is close to the block, the angle includes the top of the block. Almost like the angle includes looking "down." Further away, the angle loses line of sight of the top.

It's amazing that you remember that, but once you put it into text and I read it, I was like.... "THIIIIIIIIIIIIIIIIISSSSSSSSSSS"