im finishing high school this year (wish me luck to my exams!!!!),,,,,, but anyways, i wanted to do electrical engineering/computer science in university. After University, Im planning to work for any engineering/technical company. After earning 7-10 years of work experience, I want to start a small business relating to Sci-Tech. So my goal is to: have all industries, and i mean it, ALL (software, applied science, robotics industry, automotive industry, electronics industry, aerospace industry, defence industry, biomedical technologies, emerging technologies, internet service provider, bank, heavy industries, research and development, and MORE!!) i wanted/really required my business to have billion dollars (trillion dollars if possible) so that I can have all industry and become a business mogul Many more goals So my question is, where to start? I mean what industry should I pick first before invading all industries and business sectors? I heard and notice that software and computer/electronics is the cheapest and easiest way to start a business.... I wanted my industries to sell products and offer services. Any suggestions?