[polemic]

I'm a developer who studied Physics, and yes, you certainly can compete.

I did a few CS papers but I was frustrated by what I considered low level practical and overly complex theoretcial skills I was learning. That's fine - University should focus on the theoretical - but it doesn't always result in employable skill. Heck, it's possible to get a CS degree without doing that much actual programming.

In my opinion, Physics gives you useful thought processes and solid math skills. A physicist has to relate the real world to theoretical models, something that a programmer has to do every day. Also, many of my physics lab experiments entailed computer analysis of the results. You had to take real-world data and get useful information by programming something - something that not all CS majors seem to have to deal with.

You will have to prove yourself - but if you've been working on open source projects or have a portfolio of high quality work, that will count more than a CS degree for many employers.