The basis for writing this post about words was something garbled on Facebook about "this day in age." Read it carefully: "day in age." What does that even mean? It should be "this day and age." Grammarly says:
Simply put, “in this day and age” means “now, at the present time.” An age is a period of time, such as the Middle Ages, the Axial Age, or the Dark Ages. While those times are all in the past, “this day and age” refers to the current time — “this day.” Remember, a day is not necessarily a 24-hour period of time.Obviously, the person on Facebook heard "in" rather than "and" in the phrase. And remember, we aren't talking about my age (78) or your age. We're talking about NOW. Right now. This period of time.