The moment you see something with your own eyes and feel injustice with all your senses, you cross an inner border, you know you can’t go back from there.
The Domino Effect holds for negative habits as well. You may find that the habit of checking your phone leads to the habit of clicking social media notifications which leads to the habit of browsing social media mindlessly which leads to another 20 minutes of procrastination.
Designing for default comes down to a very simple premise: shift your environment so that the good behaviors are easier and the bad behaviors are harder.
Did Leah start by thinking about how much weight she wanted to lose? No. Did she start by thinking about how fast she wanted to run? No. Did she start by thinking about the marathon she wanted to complete? No. She didn’t start by thinking about the results. She simply focused on the process.