Quantum physics/computing ?

1 Name: Anonymous 2021-02-24 01:55
Someone explain quantum physics/computing to me like I'm more retarded than the average /prog/ user.
2 Name: Anonymous 2021-02-24 02:57
Basically all energy in the world consist of "portions". So all energy in the world is in quantum portions. Basically basically when you see light or electricity, it is not "flowing" freely like water, but being carried by really small particles such as photons, electrons etc. And the problem with the quantum realm is that it is really hard to observe quantum particles, because according to one guy named Heisenberg and his uncertainty principle if you know quantum particle's speed, then you don't know its position, and if you know its position, then you don't know its speed. So long story short, when you go into really small particles, Newton's laws don't apply anymore. So we need new laws. I am an engineering freshman btw.
3 Name: Anonymous 2021-02-24 04:21
in reality, there's no such thing as a particle at all, what you call a particle is still a wave
hence the joke in modern physics that it should really be called nonquantum nonmechanics
4 Name: Anonymous 2021-02-24 05:44
be Newton
observe world
motion seems continuous
light seems continuous
energy seems continuous
assume everything is continuous
“fuck, I need math to make this shit work”
royal academy of brits swallow the theory whole
this mindset is applied to almost all physics
skip some years
people are able to observe really small particles and perform experiments in really small time intervals
observe weird shit
measure light as continuous wave and you get continuous wave results
measure light as a particle and you get particle results
“Naw we fucked up”
experiments are reproducible across the globe
wtf is going on
turns out at very small dimensions and very small time intervals, regular physics OG newt taught us doesn’t work
turns out this is a whole new realm of physics
turns out that observables that are seen as continuous (eg light waves) can also be observed as discrete units (eg particles)
call these discrete units “quantums”
call the whole field “quantum” mechanics
observe more weird shit over time like Heisenberg’s uncertainty principle, wave-particle duality, photoelectric effect
try to apply these mechanics to general relativity
shit it doesn’t work
let’s try to apply it to special relativity?
quantum field theory is born
5 Name: Anonymous 2021-02-24 07:08
then realize that what you thought was particle results are still just wave results
realize everything is continuous after all
what quantum physicists think of as quanta are just so-called transients, because the underlying field must necessarily work by frequency response
electrical engineers have known about that shit for 150 years, since way before nonquantum nonmechanics ever became a thing
if only Planck and company had paid a bit more attention to the work of Heaviside and Steinmetz, the disastrous nonsense which is modern quantum field theory would have been averted
6 Name: Anonymous 2021-02-24 08:32
I fully and unequivocally understand Quantum Mechanics now
7 Name: Anonymous 2021-02-24 09:22
If you think you understand quantum theory, you don't understand quantum theory
8 Name: Anonymous 2021-02-24 09:49
Wouldn’t be a physics thread without gatekeeping

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