Anyone remember a link to an article from the last few weeks...

Anyone remember a link to an article from the last few weeks talking about how technology progresses exponentially?

Said something along the lines of if you were to take someone from say 50 years ago and show them today, it would be a pretty big shock. but you could take someone from 500AD to 1500AD and not that much change would have occurred, not that much shock for them.

I forgot to save the link and would like to give it a better read!