AGE CRISIS IN HOT BIG BANG Matter dominated universe ()=0 2/3 alt 21 2 H(t) → t 3H Hn2=9.8h-Gy,0.64b08→o=(8-10Gw(1G=10) Observation: to(12-15 ) Gyr 1/26/2021 BRICS 20171/26/2021 BRICS_2017 AGE CRISIS IN HOT BIG BANG Matter dominated universe: