How Tall Can Humans Really Get?

Technology now exists to extract DNA from giant skeletons. If any new excavations in the Middle East, unearth a skeleton suggestive of Goliath or of Aug or similar Biblical giants, more proof may be obtained by careful DNA analysis. So we may at some point get more information from archaeology. A final question. How big can humans actually get? Well, there are differences between different populations of humans and some people and peoples are just taller than others. When we take gigantism into account though, we know people can get up to at least nine feet tall.