The following questions are addressed in this chapter. They are better discussed in a group to allow a variety of opinions to emerge. The relevant section link is given after each question:
1. Why is light still a mystery to science? (QR3.1.1)
2. Is light made of waves, particles, or both? (QR3.1.2)
3. In Young’s experiment, does a photon go through both slits or just one? Give reasons. (QR3.1.3)
4. What is the main issue that Bohr’s Copenhagen dualism faces? (QR3.1.4)
5. What is meant by a “Pinocchio” theory? Is quantum mechanics one in current physics? (QR3.1.5)
6. How do scientists know that light is a wave? (QR3.2.1)
7. What is meant by a three-dimensional “Flatland”? Could our world be so? (QR3.2.2)
8. According to current physics, is a photon a perpetual-motion machine? (QR3.2.3)
9. Is the speed of light better described as the speed of space? (QR3.2.4)
10. What do X-rays, visible light, and radio waves have in common? (QR3.3.1)
11. Why does energy come in Planck units? Why does light come in photon units? (QR3.3.2)
12. Why does Planck’s constant also define the size of our space? (QR3.3.3)
13. If a quantum wave is a processing wave, how does it spread? (QR3.4.2)
14. Does quantum theory say a photon has a quantum wave, or that it is a quantum wave? (QR3.4.3)
15. Will hidden physical causes ever explain why photons hit a screen at random points? (QR3.5.1)
16. How can a quantum wave of any size collapse instantly to a point? (QR3.5.2)
17. Why does the power of a photon wave predict its probability of existing at a point? (QR3.5.3)
18. If a photon is a particle, how can it always find the shortest path to any destination? (QR3.6.2)
19. How then does light always find the shortest path to any destination? (QR3.6.3)
20. Why is the measured direction of quantum spin always random? (QR3.7.1)
21. Why can’t a filter that blocks horizontal polarized light also block vertical polarized light? (QR3.7.2)
22. Why doesn’t a filter that stops most of a polarized light ray weaken those that pass it? (QR3.7.3)
23. How can quantum states superpose in physically incompatible ways? (QR3.8.1)
24. In quantum theory, observation creates physical reality, so is life just a dream? (QR3.8.2)
25. Do delayed choice experiments prove that the future can affect the past? (QR3.8.3)
26. Can light detect an object on a path it didn’t travel? Is this physically possible? (QR3.8.4)
27. How do entangled photons instantly affect each other faster than the speed of light? (QR3.8.5)
36. Is the physical world distinguishable from a hologram? Why does quantum realism require it to be so? (QR3.8.6)
37. If there no evidence for the multiverse, why do so many physicists accept it? (QR3.9.1)
38. What is the long-sought boundary between the quantum world and the physical world? (QR3.9.2)
39. What is the quantum paradox? How has physics handled it? (QR3.9.3)
40. How does quantum realism resolve the quantum paradox? (QR3.9.4)
41. If quantum entities exist mostly in an unmeasured state, what makes this state “unreal”? (QR3.9.5)
42. Does quantum theory describe unreality or reality? Give reasons. (QR3.9.6)