I can't speak for developers but almost all of the best designers or creatives I know experiment a lot outside of work. Myself, I do interactive side-projects all the time as I can execute sites that I would simply not be able to do in my full-time job.
Regarding medicine: My Dad is a doctor and spends a lot of time outside of work reading dense materials about certain diseases or findings, which is definitely not light reading nor recreational. I also have had friends who've volunteered their medical expertise to aid the homeless or less fortunate.
I can't speak for developers but almost all of the best designers or creatives I know experiment a lot outside of work. Myself, I do interactive side-projects all the time as I can execute sites that I would simply not be able to do in my full-time job.
Regarding medicine: My Dad is a doctor and spends a lot of time outside of work reading dense materials about certain diseases or findings, which is definitely not light reading nor recreational. I also have had friends who've volunteered their medical expertise to aid the homeless or less fortunate.