Question about Quantum Eraser

[Jenny A]

But to "see" a subatomic thing you must bounce something close to its own mass off of it because there isn't anything smaller to throw at it. It's like if you could only see elephants by bouncing cars off of them or hitting them with fire hoses.

Is that roughly right?  If not, please explain.

So that I get your metaphor right: the elephant is the subatomic particle and try to bouncing light off it is like trying to hit an elphant with a sky-scaper? So we need to throw same scale things like cars and fire hoses and firehidrants and ladders and fire engines at elephants?

Easier said than done, those sub-atomic elephants don't hold still!

Leave those poor elephants alone.

But yeah, if the only way to see an electronic is by hitting it with an electron, or worse yet a neutron or an atom, seeing it is going to change it.