“无常” in Buddhism means what?

I ran into the word “无常” a few days ago, and it really intrigued me to find out its meaning. “无常” or “世事无常,” in my understanding, means that everything in the world is constantly flowing, so change is the natural state of things. Interestingly, it reminds me of the Heisenberg Uncertainty Principle in quantum mechanics.

What is Enlightenment?

Naval Ravikant in his book The Almanack of Naval Ravikant said: “Enlightenment is the space between your thoughts. It can be achieved every single day from moment to moment.” For example, when you do your daily walk, most likely you would focus on planning the rest of the day or thinking about the past, and