Tessa brought up an interesting point in the CR thread and I was curious about this as well.

Is there ever a reason to push hard limits? If they're indeed hard limits, are they to be pushed? I'm not looking to argue or debate. I'm just really curious about this idea.
My understanding is that a Hard Limit is something that is not going to be tried.
I also understand that Limits can change in time, with experimentation and experiences.
Then there are also Limits that are on the fence, a submissive is curious, but would only do when the time is right.

So how does one know when a Hard Limit can be actually pushed. Does the Dominant revisit the Limits with a submissive or do they know the submissive well enough to push them a little further than what is expected.

Can the Dominant tell whether or not the submissive is doing it only to please, or does the submissive stop the process immediately because they were extremely uncomfortable.