[astroH]

I think this is perhaps the wrong way to think about it. 50 million years represents ~14% of the age of the Universe (at 350 Myr) so it's really quite a big jump. Considering stars aren't thought to form until 200-250 Myr after the Big Bang, we're talking 33%-50% closer to this period. That's quite remarkable considering the was well out of reach just a year ago.

[RHSman2]

Time is relative ;)