The phrase, “remember when”, has commonly been used all throughout history. As the speed of available information increases and the world continues to change, it is probably safe to say that “remember when” used to mean 20, 30 or 50 years ago. Today it can easily mean a year or less.
Many of us remember when the price of fuel changed a couple times a month (at most). We also remember when a change of 10 cents over a month’s time was a big deal. Back then we would have been shocked to know that the market could fluctuate more than 10 cents in a single day.