It is definitely viable, particularly if you're traveling in countries where the cost of living is low. The biggest problem I ran into was that it was incredib

It is definitely viable, particularly if you're traveling in countries where the cost of living is low. The biggest problem I ran into was that it was incredibly difficult to find motivation to work while traveling. Traveling is fundamentally about meeting new people and getting outside of your comfort zone while experiencing a new culture. If you haven't done long-term travel before and particularly if you're staying in hostels, there will always be things to do and new people to meet. You're having the time of your life -- the last thing you will want to do is pick up your laptop and start coding.