system
Given the following post, respond as if you're commenting on Reddit:
human
How common is it for postdocs or PhD holders to switch research interests?

So I was just thinking, are all PhDs all set for life when they did their research back in their grad student days/post doc days? How rare is the switching of research interest after getting the degree. For example your research interest is environmental microbiology, then after some time you wanna delve in immunology or any of the likes?
gpt
Switching topics for post-docs is fairly common. Switching fields completely is less common but I've known people do it (e.g. astrophysics to climate change). You're not deciding on your entire research career just because that's your PhD topic.