I should think then, by your terms, that things exist as either proven or not, and the whole use of the word "possible" is pointless. Its would become a meaningless idea. The word impossible could still be used, but there would be no need for the word possible at all.
Stacking ten Mazda sedans on top of each other. Eating four bananas, three cherries and one small mango in exactly 4 minutes and 23 seconds. Singing three verses of Fiddler on the Roof while standing within four meters of the Grand Canyon....
Hold on a second, not only are you confusing the argument by throwing in unnecessary qualifiers, but if you were more careful about the reading of Modulous statement that I was replying to, he mentioned specifically an ACTIVITY! The concept of "things" being impossible but "activities" being possible is YOUR dichotomy, not his, and I frankly don't know why you are attempting to make some distinction. If Mod wanted to say that there can be the possibility of something occurring without evidence, but there can't be the possibility of something existing without evidence, than this is an entirely different argument for him to make. But disregarding that, you are still all over the place with this reply.
There is no evidence (according to Mod's point) that one can or can not stack 10 Mazadas on top of each other. Therefore it can not be assumed to be possible.
No. I'm suggesting that if one asserts something is possible, one needs to support that it is in fact possible with evidence.
What evidence could one give of something being possible, without actually demonstrating something to be? If you have already shown something to "be" why would one need the redundant concept of "being possible" when the definition you are presenting for being possible is showing that it IS?
By your terms, NOTHING is possible unless it is shown. How do you know it is possible for you to draw a King of Hearts until you do it? And for that matter you don't know if its possible for you to draw a King of Hearts from a deck of cards ever again. Maybe it is no longer possible. Maybe you can only draw a King of hearts 3 times and then after that it is impossible.
You are basing your definition of possible on having seen it or done it before. That means everything that you have not seen or done before is not possible.