User blog comment:Legionwrex/How did Saren reach the Citadel?/@comment-1440333-20130507094740/@comment-5267262-20130507195834

Well with all the talk of how the relay jump is automatically fatal since you get caught in black holes/stars/hit asteroids. Any other relay jump is just as likely to have an impact halfway through transit. I admit that how anyone passes through the citadel walls during the jump has puzzled me. If you go searching for it I mentioned it before somewhere. However I believe I may have found a way to overcome both issues somewhat. http://en.wikipedia.org/wiki/De_Broglie_wavelength Basically whenever something has momentum, it has a wavelength and can have wave like properties. This is how electron microscopes can be used to probe matter in more depth than light microscopes. Suppose that you then have a load of momentum from say travelling at far more than 3*10^8 m/s, you get a de broglie wavelength so minuscule that is refuses to even interact with matter around it (like x-rays have a small enough wavelength not not interact well with your flesh in an x-ray scan). Hence it could phase through. This could then link in with the "bubble" of high/low mass space you create during a jump that can span over several ships and keep them the pretty much the same position relative to each other (source: codex entry on cross relay assault tactics) and say that this bubble can phase through things not contained in the bubble but just as things outside cannot phase through each other, things inside cannot either. Can this answer OP's question? Maybe, consider the possiblity that the "bubble" around Saren contained enough of Ilos' atmosphere to keep him alive for the 30 seconds or so that a relay jump is supposed to take. If we are following the rest of my theory, object impacts do not interact with him, gravitational fields do not act on him for long enough to have much effect, and his shields can pretty much tank the radiation he receives the journey's length.
 * TLDR? Quantum physics merged with what I can gather about mass effect physics is strange.

there is no evidence that while in Mass Relay Transit that the travelling body is actually exposed to space and other astrological phemonena (as suggested above it is in fact more likely they are not), ergo the corridor between the Mass Relays must be contained That logic jump does not work. Its is not that dissimilar from saying because there is no evidence that bananas are red, they must be purple. Although my theory mentioned earlier in this post reaches a similar conclusion, it is still only a theory. The word must has no place in this blog.