quantum

i dont know..

One idea is that quantum mechanical waves and fields may be the spiritual portion of the universe and so science may already be studying spirit without really knowing it. http://www.dontveter.com/caipfaq/systems.html check these websites out http://www.virtualchaos.org/science/phys-con.html http://sivasakti.com/articles/tantra/quantum-consciousness-art67.html http://www.freewebtown.com/bhaktivedanta108/5_Quantum.html http://whatthebleep.com/whatthebleep/ This is a forum on "Zen and Quantum Mechanics meet" Some interesting posts eg. 'Well I have read in general all both hinduism and buddhism are accuratley describe the nature of the universe and through quantum physics.' http://www.comparative-religion.com/forum/zen-and-quantum-mechanics-meet-3989.html there are many many more just do an internet search also check out Edgar Cayce and Carl Jung

absplutely no idea

One theory best describes nature at the subatomic level. One theory best describes the behavior of larger objects.

Quantum is very innovative and topnotch, while Classical is just the same old natural, In my own opinion i would definately prefer Quantum over classical, as it has much more astounding features, and much more durable.

Quantum mechanics is a fundamental branch of theoretical physics that replaces classical mechanics and classical electromagnetism at the atomic and subatomic levels. It is the underlying mathematical framework of many fields of physics and chemistry, including condensed matter physics, atomic physics, molecular physics, computational chemistry, quantum chemistry, particle physics, and nuclear physics. Along with general relativity, quantum mechanics is one of the pillars of modern physics. Classical mechanics is used to describe the motion of macroscopic objects, from projectiles to parts of machinery, as well as astronomical objects, such as spacecraft, planets, stars, and galaxies. It produces very accurate results within these domains, and is one of the oldest and largest subjects in science and technology. Source: Wikipedia