Answer:
I drift forever with the current down these long canals they’ve 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, I’m good at killing people too.
Different lights do make me strange, thus into different sizes I will change
Fatherless and motherless. Born without sin, roared when it came into the world. And never spoke again.
Glittering points that downward thrust. Sparkling spears that never rust.
I have it, I don’t share it. If I share it, I don’t have it. What is it?
What covers its face with its hands, speaks no language, yet most known what it's saying?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?