An assignment I think that ChatGPT would have trouble solving is an environmental impact assessment of a site identified as sensitive. Even if given all necessary information about the site I don’t believe ChatGPT would be able to accurately assess the site. A lot of engineering judgement that takes years to aquire is needed and ChatGPT doesn’t have the capability to do so. However, ChatGPT could provide guidance for the anaysis. It could not do the anaysis though.
