Nothing is as simple as it seems.
I like to share interesting trivia, but I always do some research first because facts shared on the internet are only about 60% trustworthy.
Recently I read that you can’t count to a billion in your lifetime because even if you counted night and day, it would take you about 125 years.
This is true but not the entire truth.
If you counted one number a second without stopping, it would only take you 31.69 years to reach one billion. That is certainly within your lifetime. However, this number is not doable for a human (computers are another story.)
Assuming you are counting aloud, it would take you more time to say them as the numbers get longer. For example, it takes no time to say “two” or “thirty-four,” but it takes much longer to say “fifty-five million, four hundred seventy-six thousand, eight hundred ninety-one. And you would have to say that over and over again as the numbers counted up.
So it might take you 125 years to say all the numbers between one and one billion out loud, but that would also depend on how fast you talk and when fatigue sets in. So I would say this trivia is more of an estimate than a fact.