> At any given time you just have to decide whether to have the snickers bar or the apple.
No, you have to decide to even think about the difference between them instead of thinking about something in your life that feels more important. It's a sort of cognitive opportunity cost. You have to consciously think about food (instead of something useful) forever, because your body's instincts are telling you to do the wrong thing and you need your rational mind to overrule it.
So for the rest of your life, every day, until you die you must decide to stop and expend effort making that decision instead of thinking about work, family, politics, or writing a new bit of code that will change the world. Most human beings can do it for a while, but not forever. The only way to do it forever is to get your body chemistry on your side and reduce that cognitive load.
> "The only way to do it forever is to get your body chemistry on your side and reduce that cognitive load."
That's how all creatures in the wild do it. That's how humans did it for the past quarter million years. And all creatures did it for the past hundred million years. Wait, no, it isn't. Then there must be another way. A way that doesn't involve manipulative abusive capitalists and advertisers destroying health in the name of profit while selling it as freedom.
> "or the rest of your life, every day, until you die you must decide to stop and expend effort making that decision instead of thinking about work, family, politics, or"
How much does that lifestyle sound like freedom to you?