Answer:
Covered in stone and sun. It's home to many but also none. What is it?
I drift forever with the current down these long canals theyβve made, Tame, yet wild, I run elusive Multitasking to your aid. Before I came, the world was darker, colder, sometimes, rougher, true. But though I might make living easy, Iβm good at killing people too.
A skin have I, more eyes than one. I can be very nice when I am done.
If I have it, I don't share it. If I share it, I don't have it. What is it?
We are all around, yet to us you are half blind. Sunlight makes us invisible, and difficult to find
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.