Plan on filling in the gantry. Wanted to put a tube in there to run cables and reduce the weight. Realize that it’s known as a CFDST in building construction. Read a bunch of papers on them. Ask ChatGPT for more info to fill in the gaps. Question: how can I trust what it says is true in a field I don’t know well. Still think AI chatbots like ChatGPT are truly scary and amazing all at once!