Of course, knowing this doesn't help much when you're facing catastrophe that damages your own well being, and past performance is an unreliable predictor of future results. It's even possible we could see a reversal of many (or all) of these generally progressive trends if there is an unprecedented, massive collapse in the global economy.
But when the noise in your head of 'all the terrible things happening' is getting too loud, it can ease the stress a bit to remember that the trend is still upward in a lot of really amazing ways. When the chips are down, there's always tomorrow, and your odds of bouncing back better than before usually aren't as poor as it feels like in those moments of loss. And while it may not work for everyone, I personally take some comfort when I'm down thinking about all those out there who've been working a long time for a big win and finally got one today.