Your instinct is indeed correct. Leap seconds aren't not frequent today because they only started 50 years ago, and you should see much more leap seconds in ave

Your instinct is indeed correct. Leap seconds aren't not frequent today because they only started 50 years ago, and you should see much more leap seconds in average for next 50 years. It also means that leap seconds are not sustainable in the long term for reasons other than computer glitches anyway.