This is a clickbait YouTube video waiting to happen. And now I really want to see it to find out all the logistical issues they'd have to go through to make, cook, and eat a single noodle long enough to reasonably be considered a single plate full of spaghetti.
I thought maybe you could take a really long noodle and feed it into water, but that would result in one end being overcooked and one end super al-dente. So, I guess, passing the noodle through the water really slowly would work. I'd put it in, then grab the end with kitchen tweezers (you have those, right?) and then move it really slowly through the boiling water.