Life without fermions?

We have tried to bring out the fact that the oddities of Quantum Mechanics emphasised in M.Sc. education are really misleading. The true oddities are rather well defined principles, no less bizarre in their own right. Further, unless the principles of many-particle QM are brought out, the principles are only partially stated. One might think we are overstating the obvious. A caveat we make is, try to imagine a ``wave mechanical'' world but in which there was no Exclusion Principle. Before you launch into this recall the valence and the band structure! And don't forget ferromagnets! Best luck!!