This is a weird viewpoint. Most academic work in STEM fields is collaborative with 2-100 other scientists or engineers. This is because it is well realized that

This is a weird viewpoint. Most academic work in STEM fields is collaborative with 2-100 other scientists or engineers. This is because it is well realized that 2 people talking can do many times better work than two people working alone. Your supervisor should at different times, as appropriate, wear the collaborator cap or the examiner cap. During the course of your project, he should be your collaborative advisor who helps you flesh out ideas and improve them. At the start and end, he should be your formal examiner. This is how I have seen most Masters (and PhD) projects proceed in Physics in North America.