Define “without having their hand held”. Did they come up with all concepts themselves? Do they exclusively code in assembly? Wire their machines by hand? Operate the switches manually? Push the button off the Morse machine themselves? How far back should I go with the analogies before it is clear how nonsensical that is? I am a random hobbyist that is enabled to do such stuff because of GPT. I would not have been able to replace a broken BMS chip in my e-bike battery without GPT helping me digest the datasheet and get the register, programming procedure etc. etc. into code to read the old and write the new chip. I am not 15 anymore, I can not spend 50 hours learning some niche skill that I will never(!) use again just to fix something that is worth 200 $.
If you think that anyone can do that with GPT you are not only mistaken but at the same time I am shocked that you would not want that to be the case, just out of pettiness that you could not do it as easy but “had to learn it the hard way back in the day”. Disgusting.