Dan,The asteroid belt is very neat :-)I see a vastly more 'populated' system.In any case, perhaps I'm overstating that part.But, what if "if a squadron of warships appears, you should be able to ID and track them when their EM wave front crosses your sensor
pickets.", but its not a squadron of warships?
What if the ships are not even a squadron?
What if they don't even look like warships?
What if they appear at different times and for different reasons?By the way, where would you suggest looking for affordability calculations?Greg