I don't think anyone really has ideals. What we have is a tangled mess of ad-hoc opinions, constantly sliding past each other in search of a position that favours itself the most, like a 5-gallon bucket of earthworms.
Madness string 58692
From what I know, the speed of light is the limitation we're facing. The light from extremely far away places is expanding faster than the speed of light can reach us, so in an infinite amount of time, we'll never get to see or even know about what was there.