Is an electron's “spin” real?

[Terrapin Station]

to better understand reality, one needs to kill duality

Everyone who says this continues to make distinctions, as they must.

[socrat44]

The problem is more that the world is not dualistic, but we just have failed to offer a theory which accomodates everything.
Diiferent rules seem to appliy the the mundane human scale world and two different sets of rules to the macroscope and the subscopic worlds.
Since we live in middle world, we try to apply metphors that we recognise from our our perceived world, Yet we are temporarlly bound to a short time, and physically bound to a narrow earthly path.

Aroms have been conceived from the earliest times of Greek philosophy. Atom literally means a-divisible, not divisible. Since it was theoretically postulated that matter would reach a small size beyond which no further division was possible.
Obviously what we like to call atoms are not literally anything like it since the Bohr model proposed 3 types of particle, and an array of other subatomic particles are now on the table.
Out mistake is to think that matter is literally compose of little planets with a nucleus and electrons. Atoms do not "look" like that, in fact that cannot be seen since the wavelength of visible ligh do not work beyond 1200x magnification. Electron microscopes have benetrated this barrier to reveal sub-cellular structures but these are massive compared with the largest atoms.

yeah, the human scale is a bridge between macro and micro worlds . . .
everything began from Planck's fundamental physical constant (h)
(a minimal element of the energy of the electromagnetic wave itself)
h = E × t, E=h*f . . .

Planck is not the b all and end all.

Why not?
Planck's (h) is minimal quant of pure energy particle which can spinning E=h*f . . .
and E=h*f is responsible for all quantum processes . . .
and from micro quantum world the macro world evolved . . .

[Sculptor]

yeah, the human scale is a bridge between macro and micro worlds . . .
everything began from Planck's fundamental physical constant (h)
(a minimal element of the energy of the electromagnetic wave itself)
h = E × t, E=h*f . . .

Planck is not the b all and end all.

Why not?
Planck's (h) is minimal quant of pure energy particle which can spinning E=h*f . . .
and E=h*f is responsible for all quantum processes . . .
and from micro quantum world the macro world evolved . . .

This is exactly backwards.