Split from http://www.scienceforums.net/topic/74079-matter-are-em-wave-packets/

EM waves travel at c in a vacuum, as per Maxwell's equations. How can a quasi-stationary particle be made of something moving linearly at c?

Doesn't exactly this happen with black holes? Is it conceivable that any particle of matter could have the equivalent of a black hole in it?

Black holes are not made of photons, and besides, they have a mechanism that compels light to not move linearly.

Black holes are not made of photons, and besides, they have a mechanism that compels light to not move linearly.

But isn't "a small region of extreme spacetime curvature" an answer to the question of how a photon traveling linearly at c could be confined to a quasi-stationary space? There is a known mechanism in the case of black holes, but couldn't the problem be shifted from "how can something travel linearly and be confined to a quasi-stationary location?" to describing such a mechanism in other cases?

But the black hole is not just the photon — it's all of the other mass that you need to make the black hole in the first place! IOW, it's not made of photons. And fundamental particles don't act like black holes are thought to behave — they don't evaporate or grow. You can't just offer up "it could be a black hole" without investigating the ramifications of that model.