Having options (or optionality, as he puts it) is essential to being Antifragile (improving under chaos, thriving from shocks, etc).
Reading about this reminds me of Seth Godin’s post called “Fear of bad ideas“. He outlines that you can’t have good ideas, unless you have a lot of bad ideas. In other words, you need lots of options.
If you have lots of options (bad ideas) then you simply need to pick the best one.
In other words, instead of try to think of the one best solution to your problem, the goal is to think of as many (possibly bad) solutions as possible and then pick the best.