Answer:
Something wholly unreal, yet seems real to I. Think my friend, tell me where does it lie?
I drift forever with the current down these long canals theyโve 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, Iโm good at killing people too.
A precious stone, as clear as diamond. Seek it out whilst the sun's near the horizon. Though you can walk on water with its power, Try to keep it, and it'll vanish within an hour.
It is able to speak because it has a hard gone. You know what it is as soon as it has sung. What is it?
The higher I climb, the hotter I engage. I cannot escape from my crystal cage.
If itโs information you seek, come and see me. If itโs pairs of letters you need, I have consecutively three. What am I?