Can non-random events cause random effects?

The flapping of a single butterfly's wing today produces a tiny change…,
…so, in a month's time,
a tornado that would have devastated the Indonesian coast doesn't happen,
or maybe one that wasn't going to happen does.

Ian Stewart
The Mathematics of Chaos

Does observation alter the observed?

Can overreaction to fear of future unhappiness
reduce appetite for present risk?

Does increasing unpredictability lead to greater reliance on prediction?

Get your facts first
and then you can distort them as much as you please

Mark Twain