Hello Sam. I'm a Software Engineer at a Big Tech Co. I've been ambivalent about going back to school to do a part-time master's degree in AI, or just do self-studying. Creating a startup in the US is not an option for me yet since I'm on a TN visa (hoping to get a green card in the following years). What do you think is the best investment of my time, and how far ahead in the future should someone plan to start a "hard tech" startup? (I'm on my mid 20's)