I like the most recent XKCD cartoon and its take on the “slippery slope” idea. People always assume that one is going to slip in a direction that they want to go. And in fact, often the things that are really valuable are really hard and take a conscious effort. But anything can become a habit, a custom. People who being by volunteering an hour often find themselves working full time for a charity before they know it. That isn’t careless slipping. It is surrendering oneself to an endeavor that one has found to be worthwhile.
When one embraces new information that challenges their worldview, they aren’t on their way down a slippery slope. They are embracing a very difficult and costly path that will be painful and exhausting.
The big questions is not whether you think the slope is slippery or rugged. The big question is whether you will choose to move in the direction of niceness, of kindness, and of compassion. If you can move in that direction quickly, like the speed one would slide down a slippery slope, doing so is nothing to be ashamed of.