It's my understanding that it is believed, though not proven, that gravity may be comparable in strength to the other fundamental forces at very small distances. Somehow justified by string theory... the universe looping back on itself, or ... whatever. Not the point. My question is, if gravity were comparable in strength to the other fundamental forces at very small distances, wouldn't that complicate our understanding of the nuclear force? Specifically, I'm referring to how protons don't repel each other within a nucleus. The repelling force is electromagnetism, but if gravity were as strong as electromagnetism at this distance... I'm not under the delusion that I've made some kind of discovery here, I'd just like you to clear up whatever i've misunderstood, so the universe makes sense again. Thanks.