My rating: 3 of 5 stars
This SF story is set in a relatively not too distant utopian future when governments have been replaced by corporations akin to Google, Uber or Amazon. There is the archetypal mad scientist with delusions of grandeur who wants to unleash an untested form of teleportation that could herald the beginning of space travel or everything going pear shaped (particle physicists should get that allusion, if not, I’ll get the physics in at the end).
If you can differentiate between toothpaste foam and quantum foam and want to know the difference between a paradox and a conundrum, then this book is for you. There is an intriguing yet innovative way of pollution control using GM mosquitoes. However, the sheer number of footnotes tends to distract and to further obfuscate esoteric scientific concepts. The foot notes could have been incorporated within the main text thus making for a smoother flow.
The fighting and the consequent blood and gore were other needless distractions.
Now for that bit of promised physics: At the atomic level particles have the so-called CP-symmetry. CP stands for charge and parity. In C-symmetry, if you switch every particle for its antiparticle, they are expected to behave in the same way e.g., anti-hydrogen will behave like hydrogen The P-symmetry is about space: A system can be inverted, like in a mirror, and the physics should still be the same.
CP-symmetry suggests that for every particle spinning anticlockwise and decaying in a certain direction, there’s an antiparticle spinning clockwise and decaying in the opposite direction. Violation of C and CP symmetry are proposed and expected to explain the lack of antimatter in the universe, but so far only a handful of examples have been found.
The universe is symmetric under CPT (charge, parity, and time), which adds a time reversal condition. This implies that if CP is violated, then also the T symmetry must be violated so things don’t happen forward and backward in time. This is another example of an obvious thing at our level (broken eggs don’t jump back together) but not in fundamental physics. This discovery strongly indicates that time is indeed broken and it has a specific direction.
The isotope Barium-144 has been discovered not to be spherical or oval shaped. In this short-lived atom, protons and neutrons end up distributed in an asymmetrical shape, with more mass at one end of the nucleus than the other – hence the term pear shaped. This finding is in contradiction with some nuclear theories, and it could prove that time travel is impossible.