In the 90's I had this idea that in the future steps completed would be confirmed to the server so that the progress can be calculated for other users. Like, on system A downloading step 1 takes 1 minute and step 2 takes 3 minutes. If on system B step 1 takes 1.5 minutes step 2 should take 4.5. Do the same for stuff that requires processing.

But we apparently chose to make things complicated in other ways.