Why did i have this dream?

I just had a dream about jeromeASF and xrpmx13 (if you don't know them they are youtubers that play minecraft) and it was in minecraft and i was playing as jerome. But the weird thing is that i haven't watched either of their videos in about a week. I haven't even played minecraft in a while so why did i have this dream?

Why Does My Skype Keep Failing?

So today I called my friend and he answered so we talked for a little then hung up. Then I called him 2 hours later but now every time I call someone it never rings and says the called failed. My internet is working and my minecraft online is working fine. But not Skype! Please help me I like to Skype my friends and play minecraft but I can't without it. Its making me mad

Recovering a minecraft world from USB?

So I built this amazing minecraft creative world on an early MacBook Pro early 2011 with an underwater subway and a completely automatic minecart item transport system that I designed myself, along with an escalator (designed myself) and about 11 other amazing things including a 40x40x20 shopping mall and an underground palace with its own elevator. About a month or so ago, my hard drive failed after about a month or two of not being used at all. The partition map was corrupted (using OSX Mavericks) and repairing the hard drive did not work at all. (Tried everything, I'm not incompetent with a computer)

So there's no hope for my computer. But I did save my minecraft world on a flash drive. However i'm not sure if I saved it correctly. What I did was I just copied, then dragged and dropped the minecraft saves from my User/library/application support/minecraft/saves into a flash drive. (I know, i didn't look more into it and I'm an idiot)

I know that duplicating a world on minecraft will spawn you in a totally different world where none of the stuff you made is anywhere near, or nonexistent, but how about loading off a USB? If by chance I did actually save the world correctly, then how would I get it back into a minecraft game on a new computer?

Would this setup be a good entry level gaming PC?

CPU: AMD Quad-Core A10-6790k with Radeon 8670D @ 4.3Ghz
RAM: Team Elite 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333
PSU: Diablotek DA Series PSDA500 500W (Depending on if I need that much)
Hard Drive: 320GB 2.5" 7200 RPM Mechanical drive
Motherboard: ASRock FM2A55M-VG3+ Micro ATX FM2+ Motherboard
Case: Apevia X-Trooper-Jr (Black) ATX Mid Tower Case w/450W Power Supply
This would be playing Skyrim, maybe Battlefield 4 and minecraft with shaders. Would I need a separate graphics card? It won't be too hardcore. Also could someone give a nice cooler for the money for the processor?

Minecraft crashes when loading shaders?

I've recently tried installing the Rudocraft shaders in minecraft, I've used a few videos and followed all the steps correctly, but when i load minecraft and select a shader it just crashes and goes to the minecraft launcher. (I'm using forge 1.7.2)

Specs
CPU: Intel Core i5 4200m 2.5 GHz
GPU: Nvidia Geforce GT 740m
RAM: 6GB

What is this coding technique called?

This is seriously bugging me. I'm trying to remember the name of this coding-type technique where each letter is replaced by the letter 13 spaces away from it. Markus Persson sent a tweet which used this technique to reveal the Enderman (something from the game Minecraft). That's all I really remember.

Does anyone know what it's called? Any help is appreciated!