Easy to do, easy not to do
Olson's foundational observation is that the actions which build a good life share a strange property: they're all easy. Drinking more water, reading a little each night, saving a small amount from every paycheck — none of these require talent or heroics. But that very ease is the trap, because they're just as easy to skip, and skipping carries no immediate penalty.
A missed workout doesn't make you visibly less fit tomorrow. A skipped savings deposit doesn't visibly hurt today. The consequences of these small failures are deferred so far into the future that in the moment, doing the right thing and doing the wrong thing feel identical.
This is why Olson insists the real battleground isn't ability, it's perception — training yourself to feel the future cost of a skipped action in the present moment, before the bill actually arrives.
Takeaway: the things worth doing are easy — which is exactly why they're easy to abandon.