TTTO: Both Sides Now , by Joni Mitchell
Extremely tiny billiard balls
Exert a force on every wall.
Moving much too fast to fall:
I've looked at light that way.
But now this doesn't seem to fit
When looking through a double slit.
And shadows blur a little bit
With this peculiar ray.
I've looked at light from both sides now:
From speck and wave, and still somehow
It's light's illusions I recall.
I really don't know light, at all.
Moving steady as can be
With lots of simultaneity.
A smooth increase in entropy:
I've looked at time that way.
But near the speed of light I've found
All rates of change start slowing down.
While antimatter turns things around
And goes the other way.
I've looked at time from both sides now:
From where and when, and still somehow
It's just equations I recall.
I really don't know time, at all.
Yellow, red, and sometimes blue
Just u's and d's will nicely do
To make protons and neutrons too.
I've looked at quarks that way.
But lambdas now are acting strange
They're taking much too long to change
But nothing's lost and nothing's gained
During a strong decay.
I've looked at quarks from both sides now:
From up and down, and still somehow
It's only hadrons I recall.
I really don't know quarks, at all.