Although I'm not sure if there's a proper reason why Internet speed is measured in kilobit and megabit while in real life we all use kilobyte and megabyte.
I think it's because, theoretically, a byte can consume a variable amount of bits to be transferred (something around 8 bits, it depends on the protocol). Hence, network connections are sold to transfer bits, not bytes, and the speed in bytes depends on how they are packed. (Although, practically, it is almost always the same, I guess.)
My experience (IMO good for novices): Start with a computer with whichever Windows installation you like. 1. Try a Ubuntu live CD. It works. I like it. Next. 2. Shrink the Windows partition(s) in order to reserve empty space on the HD. (Follow the instructions carefully.) 3. Install Ubuntu on that empty space. (Follow the instructions carefully... most of the repartitioning is done automatically.) You end up with a dual boot computer, with options for Linux (default) and Windows. (After that, Windows may complain on partition resizing, but just let it fix it automatically for you.) Nowadays, I have three OS options on boot (Windows* 7, Debian/Linux and PC-BSD/FreeBSD), all of them fully functional, on a home notebook with 2GB RAM. * Let me add that I (very close to) never need to use Windows.
(This reminds me here: http://my.opera.com/community/forums/findpost.pl?id=9050592) Close to 7. Nobody can say "I know there is no God" without taking a look at the whole universe (and around) and being sure that "he's not there". If it weren't for the word "know", I would be 7. For me, the probability is zero.
OK. Let's sum it up: string asks: why? You explain nicely with a fair amount of philosophy. I sum it up as: "Some people don't accept a 'nothing' as an answer'." You and me wander in circles just to confirm what I said, which confirms what you said. Nice agreement. Quite productive. Why complain?
I know "god of the gaps", which is what you use. "Nothing of the gaps" is news to me. But I think it's all clear now, and string's question seems to have been answered (do you agree, string?). I thank your for this.
To you there's no difference between "have not detected yet" and "does not exist". Both are nothing to you.
No. The second is nothing. And, for me, it's an acceptable answer. The difference is that, for you, it's an unacceptable answer; something must be there.