Mistakes move us forward.
You're locked in, and then you're locked out.
Breaking a vase? Breaking new ground.
...from the staid, the status quo, the stagnant.
I'd like to ride on my bike and get lost, or drive around in the car and use the GPS to get back. But I wont', because I'm locked in to this behavior.
Spontaneity is defined by a sudden departure from the norm. If something is the same as what came before it, it cannot be spontaneous.
But if you don't see something coming...
If we already had the answers, we would know what to do.
The answer does not always proceed logically from the situation.
Discovery. Serendipity. Change.
These are where the interesting is.