I don't know where I heard this, but apparently it's a neatness/ psychological thing. Has anyone else ever heard this / knows where I got this idea from please?
I can understand that actually, and I'm planning to have 5 chapters in my thesis - maybe it's a beginning-middle-end thing (although my middle chapter is not a climax at all, hmm).
heehee... sounds like a "classical" play/drama in five acts. i mean, "good" writing, be it poetic or belletristic, used to have these norms of how many acts/lines/whatever are appropriate, incuding in which act what is to happen.