Horowitz Andreessen Academy raised $42M from investors including @adamdangelo, @Tobi Lütke, Tony Xu (@t_xu), Fidji Simo (@fidjissimo) & Shyam Sankar (@ssankar). Why? No student is going to enroll in a school that might run out of runway in 18 months. “Instead of raising for 18 months, we raised for a few years. This was very intentional because there's a big difference between starting a school & starting an AI app, & one of the biggest differences is you need longevity.” “As a student, you…