8 x 10 6 4 x 10 3 July 8, 2019 16 32 64 128 ( 3 x 10 4 6 x 10 8 ) 2 x 1011 Y ( 3 x 10 4 6 x 10 8 ) 2 x 1011 8 × 10 − 6 8 x 10-6