I believe the simulation I spoke to the researcher about was around 100 atoms cubed. So 1,000,000 atoms. Numbers vary wildly with cell size, but a typical cell might contain 100 trillion atoms. So, a factor of 100,000 difference in scale. Which would be between 16 and 17 doublings. Around 25 years given Moore's law. The conversation happened probably 8 years ago, so only 17 years to go! lol