Computer Science is math. Chef, Docker, Ansible, AWS are industry technologies. You don&#x27;t go learn CS to learn these, you want a trade school instead. Industry generally doesn&#x27;t even work on the same problems that university CS departments work on.<p>In industry, a &quot;hard&quot; problem is one that takes more than a few weeks to solve. In academia, a hard problem is one that you don&#x27;t even know if you can solve, let alone put a time frame on it.<p>And yes, you can learn anything on your own, but the number of people who actually go and learn the deep maths on their own is vanishingly small.