Except everybody is already using UTC, and will not change from UTC to "Unix epoch time" on your say-so. Or to TAI or any other crack-brained system you can thi

Except everybody is already using UTC, and will not change from UTC to "Unix epoch time" on your say-so. Or to TAI or any other crack-brained system you can think of from your armchair, including all the hardware that cannot be changed without throwing it away and buying new. All we need to do is simply choose not to announce that all the software in the world that (might have) "got leap seconds wrong" but still has to talk to the other half that (might have) "got leap seconds wrong" will be officially broken, this year. Or next year. Etc.