Searching for historical artifacts from key physical locations with historical significance, be it via formal archaeology or hobby metal-detecting, is both very cool but can also be invasive. How do you feel about there being so many locations that are known to have rich history still buried all around, though with restricted access which prohibits hunting?
Granted, archaeology is both a time and cost-intensive venture. Metal detecting opens up issues related to diggers who might not be respectful of the lands and only in it for the monetary gains. What is a good balance between finding history, and leaving many unknown pieces of it still unknown in the ground?