"EP you may have no idea how often impacts occur, but professional astonomers, geologists, and planetologists do."

No, they really don't, not yet anyway. At the current time there are respectable estimates of cometary impact which differ by orders of magnitude.

Everyone has their estimates, and developing them is hard work, but at this point in time any claim of certainty can be demonstrated to be specious in about five sentences.

By the way, you left the physicists off of your list, and this is not an insignificant ommission on your part.

What is known firmly and agreed to generally is sufficient to show that NASA is simply not spending enough on this hazard, either on dealing with it as known, or on further defining it.

"I think cross checking between lines of evidence from these three professions is far more productive and reliable than myth chasing."

I agree, but NASA is not spending enough on either getting the required data or on its analysis.

As far as "myths" go, the proto-historical record ("myths") of recent events (those of the last 5,000 years or so) has a certain value in and of itself, and trying to reconstruct that proto-historical record involves all of the disciplines you mentioned, as well as the one you failed to mention.

Myth is one way our ancestors passed their knowledge on to their descendants. With the passge of time, history would become myth, if the events were important enough to be remembered

At this point in time developing the proto-historical record is an ongoing process, and impact events are a significant part of that record. Sometimes we have recent craters, with no associated myths found yet; other times we have myths, with no recent craters found yet; finally, sometimes we have both myths and craters.

ep