Hacker News Reader

Does that interaction cascade such that space is effectively even more opaque as the flux increases? Or could we inlist an even more unimaginable flux of high energy photons to clear the path and allow the observed x-rays to come out the other end of the very long path..?

View on HN

My understanding is that it doesn't. Though if the energy gets high enough, you can start to get other particles out.

As for protecting one photon with a sheathe of other photons, the energy density required for that tube is absolutely insane. We're talking photons spaced the width of a proton apart, with very high energy. Even assuming that it could be assembled, the gravity from the leading edge of the tube is going to do "interesting things" to the rest of the tube. Maybe even black hole levels of interesting...

Reply on news.ycombinator.com