okay this is a talent I would think but when it comes to focusing one thing so you can retain most of it, then it becomes a flaw,
I can think and read at the same time and listen to conversations or tv, radio or whatever, basically I can do 3-4 things that involve thinking or doing stuff certain things (all at once), it happens against my own will, I have to fight it when I'm in class trying to pay attention, anyone you like this? Is it normal?
i wouldnt call it normal as such but its not strange .. i'm very impressed to be honest lol and a tad jelous =P
And now, re: the question, it's perfectly normal, I can do it too C: