> All cases I know are from people who made enormous contributions to their respective fields before they could enrol in a PhD program. This is highly dependen

> All cases I know are from people who made enormous contributions to their respective fields before they could enrol in a PhD program. This is highly dependent on the field and the particular group you work with. Most PhD students I know came straight from bachelor’s and did maybe a year of research in undergrad but with no significant contributions, some did actual research with a group, some have a paper or two published. But yeah, it’s pretty much impossible to get into a PhD program without a bachelor’s degree.