First, it’s even now achievable the universe is finite. All we know for confident (typically for confident) is that it’s even larger than we can observe, effectively mainly because the farthest edges of the universe we can see do not glance like edges. The observable universe is even now large, but it has boundaries. That’s mainly because we know the universe isn’t infinitely previous — we know the Big Bang transpired some 13.8 billion a long time in the past.
That means that gentle has experienced “only” 13.8 billion a long time to journey. That’s a good deal of time,