These aren't someone's 85 year old grandparent getting a computer for the first time to look at pictures of their great grandchildren, these are people who have

These aren't someone's 85 year old grandparent getting a computer for the first time to look at pictures of their great grandchildren, these are people who have used a computer every day since they were 14 and have advanced STEM degrees. I think they are probably re-trainable.