Singularity, to me, means the point where rapidly advancing technology changes humanity - our bodies, our world, everything we know as human-to the point where it is no longer recognizable.
The singularity is coming like a frieght train, but not many people can see or hear it. Nevertheless, here it comes.
I plan to hop that frieght, if I can, if I'm still alive.
What if you could replace body parts with machinery when they wore out ( we already can, to a small degree). Say you replaced your heart. then your lungs. Then our ears and eyes. Fused the new components to your brains with a mind/machine interface. Replaced aging bones with titanium, along with the joints. Sense of smell augmented with chemical sniffers a million times more accurate. Blood volume decreases with each biological structure replaced by machinery. Blood replaced by chemicals. Crazy? We're already halfway there.
Finally the last vestiges of biology are done away with, and the conciousness transfered to a quantum computer. You now have the ability to "think" in ways that make the worlds' most powerful computers today seem like retards.
Then, the last step, your "body" is done away with- you now exist as information only, able to see, hear, touch, taste, smell, anywhere there are sensors- and with that kind of power, you could move among the stars much more easy than some primative starship carrying lifeforms and fragile support systems. This insane reality is closer than most people realize.
But what of the human soul? does it exist, and if it does, is it tied to the body only? Most people agree that the soul is not destroyed when the body is. So now you exist as a bunch of bytes. Where is your soul?