Part 3 video

- also minor updates

.gitattributes

@@ -2,3 +2,4 @@ p2p.mp4 filter=lfs diff=lfs merge=lfs -text
 00-intro.mp4 filter=lfs diff=lfs merge=lfs -text
 01-analogies.mp4 filter=lfs diff=lfs merge=lfs -text
 02-principles.mp4 filter=lfs diff=lfs merge=lfs -text
+03-faq.mp4 filter=lfs diff=lfs merge=lfs -text

02-principles.md

@@ -7,11 +7,11 @@ theme: theme.css
 ---
 
 ```md
-# The five principles of Bitcoin
-What to do and what not to do
+# Part 2
+The five principles of Bitcoin
 ```
 
-# The five principles of Bitcoin.
+# Part 2, The five principles of Bitcoin.
 
 What to do and what not to do.
 

03-faq.md

@@ -3,21 +3,85 @@ background: ukulele-1 0.3 fade-in fade-out
 voice: brian
 size: 720p
 transition: crossfade 0.1
+theme: theme.css
 ---
 
-Why Bitcoin and not shitcoin?
+(pause: 1)
 
-Money tends to have a single winner. People need to be convinced that someone
-won't suddenly produce more money, or redistribute existing money.
+```md
+# Part 3
 
-The Vision 
+Frequently asked questions
+```
 
+# Part 3
 
+Frequently asked questions
 
+(pause: 2)
 
+---
 
-Bitcoin theft:
-Using bitcoin properly is like using a door lock properly. If you have a door
-lock on your door but forget to lock, then you can still be burglarized. If you
-then complain, well, I had a lock, I thought it was used to protect me, how
-come it didn't work? It didn't work because you didn't use it correctly.
+```md
+# Why won't something else replace Bitcoin?
+```
+
+Why won't something else replace Bitcoin?
+
+(pause: 1)
+
+In order for something to replace Bitcoin for saving, it would need to
+provide similar and even better properties. While some "cryptos" are also easy
+to transport and scarce, none of them have the level of decentralisation of
+Bitcoin, and that means their rules could change when under attack.
+
+The decentralisation of Bitcoin goes beyond the mere technical and
+organisational. There is also a culture of decentralisation, which acts against
+attempts to centralise. There could be something else in the future which is
+better than Bitcoin, but as time goes on it is less and less likely. It is less
+likely now than it was five years ago, for example.
+
+(pause: 1)
+
+---
+
+```md
+# Why do I hear all the time about Bitcoins being stolen?
+```
+
+If Bitcoin is so secure, why are there so many reports about people losing
+their money?
+
+(pause: 1)
+
+In order to benefit from Bitcoin security, you need to follow the five
+principles of Bitcoin mentioned in an earlier video. Usually, when you hear
+about Bitcoins being stolen, the people involved violated principle number two:
+not your keys, not your coins. They entrusted their keys to someone who doesn't
+know what they are doing, they left it in an unsecured computer, or their keys
+got damaged beyond repair. It's similar to someone putting a massive lock on
+their house door, but then leaving the lock open when leaving the house.
+
+(pause: 1)
+
+---
+
+```md
+# If Bitcoin consumes a lot of electricity, do I also have to do that?
+```
+
+If Bitcoin consumes a lot of elecricity, do I have to worry about my
+elecrticity bill?
+
+(pause: 1)
+
+When Bitcoin was originally launched in early 2009, there was only one software
+doing all the work. Gradually, specialised software developed for the
+individual activities involved in the network. The, nodes, verify the ledger
+and enforce the rules. The, wallets, keep your private keys secure and initiate
+transfers on your behalf. And finally, miners, which consume elecricity and
+provide security for Bitcoin. In the meantime, mining is a business like any
+other. Miners run in data centers and in special containers which can move to
+wherever cheap energy is available.
+
+(pause: 1)