If someone tells you that we’re closer to nuclear doom now than during the Cuban Missile Crisis, I don’t think you should take their analysis particularly seriously.
I believe the claim is that all risks combined now are slightly greater than the average nuclear risk during the 1953-1960 period.
Regarding the Cuban Missile Crisis in particular, the Wikipedia page says:
> The closest nuclear war threat, the Cuban Missile Crisis in 1962, reached crisis, climax, and resolution before the Clock could be set to reflect that possible doomsday.[citation needed]