Dimensions

Medley: Aquarius/Let the Sunshine In (The Flesh Failures)

Now let me tell you one thing (let the sunshine)
I want you to sing along with The 5th Dimension (let the sunshine in)
Hey, open up your heart (the sunshine in)
Come on! (let the sunshine)
And let it shine every day (let the sunshine in)

So how many dimensions are there?

The song above was a Grammy Record of the Year for the Fifth Dimension in 1970 .  Are there five dimensions? There are the three dimensions of space, x, y, z also known as length, width and depth. There is the dimension of time.  If we add the dimension of the imagination then there are five dimensions. If reality is defined as space and time and zero imagination, that zero is only the coefficient of the axis, dimension, of  imagination and there are thus five dimensions of reality.  So the name of the singing group is more than appropriate.  Let the Sunshine In!