I've been following Peter Lynds work- which is a periodic rediscovery of the philosophical difficulties surrounding the concept of discontinuity, threshold, edge etc and its application to Zeno's paradox. Lynds' solution has emerged a number of times in showing the paradox is invalid because the concept of a discrete point in time or space cannot be real since any discrete point in space or instant in time would be composed of an infinite number of further instants and points. Hence discrete points and instants can have no physical reality and if they did then continuous, dynamic phenomena could not flow from beginning to end. This raises the notion that if no time interval can exist without being divisible into smaller intervals, then at the most fundamental level, no 2 events can be said to be absolutely simultaneous since they could never exactly occupy the same time interval. In this sense simultaneity (not in the relativistic sense) does not exist. If so then the "simultaneous" measurement of phenomena at the most fundamental level does not exist and measurements will always be sequential. Conjecture: The Heisenberg inequalities stem from the effect of the observer attempting to enforce simultaneity upon two sequential events- i.e. measurements of position and momentum (or energy and time)- and encountering real physical limits at the planck level. I'm not sure why these conjugate pairs are singled out for uncertainty relations and others are not, so this will require more thought. But essentially the conjecture takes its departure from the fundamental metaphysical issue over 2000 years ago. i.e. whether reality is indivisibly contiguous at some fundamental level or atomic in its divisibility. We've had great success with the latter until QM has revealed strangeness like nolocality and other clues that the divisibility of reality has some fundamental limits.