ChatGPT won't really help you improve your writing. It's got a terribly standard and boring voice. Most of the time generates 5 paragraph essays that make it super easy to sniff out. It might give you a couple common words it found in its training data to use, but you should stick to your elongated thoughts. Reading your writing out loud and editing will be just as good if not better than ChatGPT. Your comment here is pretty good. The first reply you made sounds... soulless.
Also related: companies that think because they have a slack thread discussing a design they have documentation. Hard to find that thing 3 or 4 months later.
Relative to the prediction side (which Dark Sky is arguably most known for): Every day, NOAA collects billions of data points (20 TB) of data about the planet's weather, and throws it into their supercomputers to make a forecast. NOAA has the 49th and 50th fastest computers in the world. In fact, the two major applications of the original supercomputers were nuclear physics and the weather.
They make it all available at https://www.noaa.gov/nodd/datasets, but as noted - since the data is so incredibly large and NOAAs already running stats on it... you can't really outcompute them.
[There are very very few CS applications with both a) more computing power and b) more real world impact than predicting weather and hurricanes. Maybe cancer research.]
0: https://en.wikipedia.org/wiki/Subway_Challenge