"Jeff" wrote in message
...

Thanks for the link - that only proves my point. There were many
hypotheses for the extinction, but virtually no proof for any of them.
There is nothing wrong with presenting the various suggested
possibilities, that's exactly what the my teachers did, and what the books
of the day taught. Selecting one of them, and teaching it as accepted
fact, as you claim your teachers did, is, at best, incompetence.

Still can't bring yourself to admit that I related a true story, can you?