To me it's not even a brick if a soldering iron is still useful. And for a number of years I only thought a zero-day defect was something that had existed sinc

To me it's not even a brick if a soldering iron is still useful. And for a number of years I only thought a zero-day defect was something that had existed since that version of DOS or Windows was issued, regardless of when or whether it was discovered, patched, exploited or not. Eventually I got the idea that people just don't want to count back that far.