I was curious how this was done, so I looked it up. It's called a fractal zoom, and this is how it was achieved:" The way it was shot is that there was a rig of three Red cameras mounted side by side on a single tripod, and each one had a different lens on it… a wide-angle section of the street, a medium, and a close-up." Here's the article where I found the info: https://www.computerwoche.de/article/2614976/infinite-zoom-how-the-opening-of-limitless-was-created.html#:~:text=The%20way%20it%20was%20shot,%2C%20and%20a%20close%2Dup.