Simply I always trace from Google anything my favourite interests about UNIVERSE, LIFE AND HUMAN NATURE. Time-matrices in years like this :
10,000

>>>>>>>>> 13,700,000,000>>>>>>>>> 4,500,000,000
4,500,000,000>>>>>>>>>> 10,000

>>>>>>>>>13,700,000,000
13,700,000,000>>>>>>>>> 4,500,000,000>>>>>>>>>>10,000
Why we're 'just conscious' 10,000 yrs ? What's for ?