  In this paper we show that the initial philosophy used in designing and
developing UNIX in early times has been forgotten due to "fast practices". We
question the leitmotif that microkernels, though being by design adherent to
the KISS principle, have a number of context switches higher than their
monolithic counterparts, running a test suite and verify the results with
standard statistical validation tests. We advocate a wiser distribution of
shared libraries by statistically analyzing the weight of each shared object in
a typical UNIX system, showing that the majority of shared libraries exist in a
common space for no real evidence of need. Finally we examine the UNIX heritage
with an historical point of view, noticing how habits swiftly replaced the
intents of the original authors, moving the focus from the earliest purpose of
is avoiding complications, keeping a system simple to use and maintain.
