Seriously. Let me address the levels of potato here:
1: "Difficult to link with bank"
If you didn't think about this, if it was able to be linked with a bank, it would be more centralized and also remove the levels of pseudonyminity bitcoin offers. Further, on a competition level, Bitcoin is poised to become a replacement banking technology independent of governments and countries.
2: "What if bitcoin was an inside job"
Just... Just.. What? I mean really guys. If you go back in the github, you'd realize that Satoshi... Whilst he is a genius and understands programming logic, his actual code was.... Mediocre, and very difficult to work with. His code worked, but that was about it. It has taken years to make it as complete as it is, and you can take a look at the currency's programming yourself. Here is a tinfoil hat for this one. Use it to cook potato brain better good.
3: "How secure is this stuff?"
Bitcoin is completely secure. The "Hacks" of bitcoin/litecoin/namecoin/dogecoin(kill it with fire before it lays eggs), are due to PEOPLE being complete morons and trusting a website not to run off with their coins. Right now the automation investment of bitcoin isn't fully set up, and further, people have been proven time and time again to be unable to build a secure website. When you make it securing thousands if not millions of dollars of currency which can't have the transaction reversed, many people will go after it. Hell I'd spend a few months trying to break a website for a free 10k of any money which can't be reverted.
4: "What if this mining was to crack passwords?"
Okay. Bitcoin is sha256^sha256; No password system uses this since it would cause too much server load without much payback. Even better still is that bitcoin encrypts the previous encryption. AND EVEN FURTHER: the length of these "Pass phrases" if they were such a thing would be too long for any website tor store efficiently.
Please guys. Tell me you're trolling. That was bad. I mean. That was really bad.
You guys went 4 levels of potato there. The second level of your potato even gave you a tin foil hat.
Otherwise.. cool show as usual.