At one point, humans had not stepped on the moon. At one point, we didn't know about antibiotics. At one point....

It doesn't matter what used to be, we're discussing what is now. We now have mobile devices that are much cheaper for people to obtain than a computer. For most, that device is more powerful than a computer they could afford. Arguing the fact that a vast number of people's only compute device is their mobile is just arguing with a fence post. It serves no purpose.