There’s a great Spanish idiom Maru taught me that says, “con el diario de lunes”.
It translates literally to “with Monday’s newspaper,” and is used when analysing past decisions with the benefit of hindsight.
Let’s say you miss a flight because of unforeseen closed roads and delayed traffic. The saying goes that “with Monday’s newspaper” (i.e., knowledge that traffic was bad that morning), you’d have left home much earlier and planned an alternate route. The obvious issue is we never get early access to Monday’s newspaper, so we should give ourselves a little slack when things go wrong. And next time round, try anticipate what could go wrong ahead of time.