[BrandoElFollito]

Theses at my time were about 200 pages long. A friend of mine wrote two tomes.

I clearly stated that I would not waste my time and the reviewers are free to provide comments and we will see during the defense.

I found out that a lot of these "rules" are traditions that one can challenge and suddenly they are not traditions anymore.

[dotnet00]

Yes, the only hard rule in my department is having a minimum of 50 pages, the idea that 100 pages is not enough came from the scientists applying their own experiences from years ago. Technically there was nothing they could do about her thesis having fewer pages, but as inexperienced students, it's obviously a little scary when people you look up to sound concerned (since academia is full of all sorts of unproductive and unstated expectations).

A friend at another department only had a minimum requirement of 5 pages, and his thesis ended up being just a collection of his publications.

[BrandoElFollito]

> his thesis ended up being just a collection of his publications

We have in France the concept of "thesis on publications" where you write an intro, an outro/conclusion, and bind your articles in the middle. This is very helpful when you have already published everything that builds your thesis.