marcel - Hi! How are you?<br /><br />Alas, I did not see it.<br /><br />I have read on String theories elsewhere however, as well as the attempt to theorize an original univication of the 4 main forces of physics, aka Grand Unification Theory, aka GUT.<br /><br />Gravity is the most obvious objection- as well as the question of dark energy which may interact with gravity differently at different scales or in the different circumstance of escape velocity, i.e. the breaking of gravitational bonds.<br /><br />I don't think things are as simple as some propose.<br /><br />As for these various theories, the jury is still out so to speak and we need more evidence to come to a verdict beyond reasonable doubt.<br /><br />Will there be a rebroadcast?<br /><br />Can anyone post a few outstanding main points?