Computers. It used to be a strong academically controlled field. It was an area where you needed needed a PhD in Math to even touch the machines. That was then.
I want to get deeply involved in a field that was started by academics. It is dominated by academics. Guess what their minimum requirement is for a job?
I don't have a PhD. My academic credentials suck. However, the field fascinates me. It's getting to the point where I'm reading papers on the subject in my spare time. What realistic options do I have?
I want to build something that goes beyond NASA's Curiosity.
I guess my question is, if you love this field so much, why not do your PhD? Dedicate a whole bunch of time and effort to actually becoming an expert in this field, make a significant contribution by publishing papers. Then you'll know you're qualified, and you'll already have gotten to do the job.
On a side note, what field is this exactly? There's a big difference between wanting to do stats for machine learning, and wanting to write control systems for nuclear power plants.