[swayvil]

So it's an edge case fail for the noise reduction alg.

How far can a noise reduction algorithm go? Can we use a white painted wall as a mirror?

[michrassena]

I don't think we're that point yet, but there's some amazing work on deconvolution for seeing around corners.

[swayvil]

If we could use a rock one light year away as a mirror then we could see 2 years into the past. That's a practical application.