Some ideas are creative, they try to give room for things to grow.

And some are entropic.

The difference here is that the entropic ones cannot due to their very nature ever stop; there's no end-state that's achievable, and their method of striving for the impossible end-state is always a destructive one, in some manner or form.

The creative ones don't stop as such either, but since they create instead of destroy, choice and variety and differences can and will continue to exist on their own volition and ability.

If I was to be nitpicky about it - and I am- I'd also point out that it is possible for an idea to go from creative to entropic and vice versa, over time. Compare the original French communitards to the much later Russian communists for a real-life empirical example of creative -> destructive.