1. It's important not just to look at ancient sites in isolation. They exist in a wider setting, as part of a larger system of sites. They are positioned according to a variety of factors, including alignment to other sites, location in relation to landscape features, to underground water, overground energy-lines, geology, the rising and setting points of sun and moon and the site's visual setting in the landscape around it.
2. If a site is dated to a certain period, this might not have been its first use. It might have been used long before constructions were erected or artefacts left. Modern geophysical investigation and date-dowsing can overcome this to some extent, but a proportion of West Penwith sites are incorrectly dated because their use can in many cases have started before engineering work, which gives a basis for dating, was carried out there.
3. Research outlined on this site shows that West Penwith is more of an integrated system of ancient sites than has previously been known