Thanks for this Alex. Interesting topic, good references. Looks like a terrific talk by a leading expert.
If I had time, I would attend, and ask Scharwzschild how predicates of state and predicates of events differ from endurants and perdurants, also. given how explanatorily useful he finds this classification, whether, in order of degree of ontological commitment, there is some sense in which this is really a description of what is in the 'world' he talks about, or has the status of a scientific theory, where it might be sensible to show why it is more effective than other such theories, and whether there is any way to use the theory for predictions or what else makes it a good theory, or finally, is this just one interesting analysis among many that shows one way among many to impose a classification of our concepts.
His new book, A Course in Semantics, probably gives clear hints as to his views on these questions. Also, I have been looking for a new book on semantics, and am happy to find it, though couldn't be as much fun as John McWhorter on general linquistics.
Wm