You’ve likely seen video games such as No Man’s Sky where you’re able to manipulate the world around you, quite literally, to develop specific things. Like if you want a mountain or hill gone or moved somewhere. This is something a lot of builders would love to be able to do. Nanotechnology could likely be developed to create powerful geophysical or geological manipulation technology. However, this is quite a dangerous thing for just anyone to have. It could cause issues such as earthquakes and even make nearby volcanoes erupt, even before they might normally do so. Obviously, this is not a good thing.