Shawn Ryan

Yeah, so, okay, so...

So there's different kinds.

The easier one is not the one that I came up with.

It's much older.

And it's this notion of you're going to have these big bodies out somewhere in the galaxy or whatever, or far away, coming in and colliding.

And then when they collide, they're going to coalesce maybe into another black hole or whatever it is.

But there's some ripples in the space-time that come out to you.

So these gravitational waves are propagating away from this collision exhibit.

Yeah, I mean, I think actually it's pretty accurate in the sense of like, I'm looking at like, say at a given time, the positions of some mirrors that have been moving back and forth.

So the thing about the memory effect is basically that there is like a very like long time scale thing that's imprinted because of this scattering process.

In some sense, almost literally.

I think that the thing about the wake of the boat is there's different approximations for a deep water wave, and it's not as universal.

I have a friend who has a family who's into nautical stuff.

So I think we concluded that there's a sense to which sound waves in the water could be approximated as having a memory effect, like if they're deep underwater, but a surface wave is not.

is not going to have a universal relation between the boat passed and then it moved.

But okay, so imagine, let's do the buoy analogy.

So I don't think the math works out the same, but imagine you have like some boat passing and you knew that like you could infer like the amount of like munitions on this boat because like the buoys moved a certain amount.

No,

Like, you know what I mean?

Like, some net property of, like, the thing.