I think it could be possible to change bitcoin code to add more bitcoins. I mean blockchains. If one blockchain is not enough, then maybe we could have more?
Current bitcoin blockchain could be bc1. Because there is high demand for more transactions, we could add another blockchain bc2 that have parallel transactions.
You could have accounts in wallet in different blockchains and could see which one is less used to pick one you would like to use. Ofcourse there should be a way to allow to move bitcoins between blockchains.
What about rewards for miners? I think bitcoins should be split between current count of blockchains to not change inflation. If we have 50 btc as block reward, with multiple blockchains reward would be 50/(blockchain amount) plus fees. But there would be (blockchain amount) more blocks per 10min than now.

I am not core developer and because of that I don't know if it is 100% doable but if it would, we could scale blockchains that way forever just by adding another ones until we find something better
And another good thing about that woud be that you could have only one of the blockchains on disk and not have to save all transactions in all blockchains ...

I don't know if there is solution for this already but recently I think I found solution for my problem.
I'm designing a game where players will be able to sell/buy game gold for bitcoins from other players. But I didn't want to store their bitcoins in game accounts like it often happens in such cases. I decided to not store their bitcoins for two reasons: less trust needed because people are not handing me anything directly and if someone will hack site they wont be able to steal users bitcoins.

So how to do this? Players will have to save with their game account info some bitcoin address. They will create this address for this game themselves somewhere and submit only public part of this account (and eventually request signed message by that address so I know they have private key for it). When they will use my page to buy gold I will simply check if two stored addresses had transaction with specified amount between them and then send gold between accounts.
The only problem I found for this method is to force unique addresses, so one player can't submit already submitted address of other player. . Do you think this is good method for handling player transactions and maybe you can see something there I forgot to mention?

Not long ago Slovenian bank Nova KBM had been nationalised and around 20% stocks which belong to Polish investors had vanished from they accounts today.
This was established with European Central Bank who admitted this is a proper way to act in this case (to cancel investment without refunding).
Polish news:
http://wyborcza.biz/Gieldy/1,114507,15236020,Z_rachunkow_polskich_inwestorow_zniknely_akcje_slowenskiego.html?biznes=wroclaw#BoxSlotII3img#BoxBizTxt

what would you do with your fiat money if there would be 2/3 or even 50% shops and services that would be accepting bitcoin payments around your place of living? To me that would mean to get rid of fiat as soon as possible and use bitcoin only. But can you imagine what would that mean for shops that not accept bitcoin if that would happen on larger scale?

What if government would just stop collecting taxes. Imagine how simpler life would be. No bureaucracy, no vat, way less officials, nobody fighting money laundering, way simpler economy and businesses without traps.
In exchange government would simply print as much money as they need and spend for education, health care and everything they wish. Its that simple. What do you think?

There is alot of ideas about decentralised exchanges lately but i see people are trying to overcomplicate things. My idea is simple, make real free market for bitcoin.

Maybe we should create open source, simple shop-exchange that is easy to set up and cheap to maintain. That shop would allow selling bitcoins (or buy if owner wants to add this feature) under its own rules and its own price in very similar way localexchage does but allowing people buy bitcoins online (which could also buy/sell locally for cash).
Every shop would decide what payment methods they will accept. It could be even sms-payment method.

Before you judge this idea think about positives:
- decentralised
- price is set by shop owner which means way less volatile bitcoin value and more realistic because they would have to include work that is put into running real business
- real market driven prices, if there is alot of demand, the price is higher and no one will simply dump tons of bitcoins because they wish to do so.
- you dont have to store bitcoins or money to exchange that could be closed at any time
- legally simple, you pay taxes as any shop owner
- very flexible and customised for local needs

Yes, you will have to trust this site but like any other online shop. There could also be a reputation system or page where people could rate such sites.

If you are worried about credit cards and possible withdrawal of money, then its up to you what payment methods you will accept in your shop. It could be cash only if you wish.

I know some people would strongly be against this because they love opportunities for high earnings exchanges provide but honestly i dont care. People should decide what they want more: volatile market or bitcoin that is treated more seriously by others and especially newcomers.

I dont say we should stop using exchanges righ now, but maybe simply let them die when people will stop using them because of all the attacks. Just make shops, make them real business with address so people know where to find you so you dont run with their money, register your company as simple shop selling virtual items.
It is way simpler to make online shop than online trading exchange which means there could be very high amount of shops that are competing with each other. And they dont need to store huge amounts of money and can make payments possible to avoid banks at all.

As i see it shops will take over exchanges anyway because of attacks but what i wanted to suggest is to make open source, cheap, simple and secure php shop that could be run by reasonable people who would like to run they own business and help bitcoin community by enabling others to buy or sell bitcoins for stable prices in accessible way.

[1 btc = 100 000 000 / 1000 = $100 000]

Before i will begin my rambling i write some analogy.

Lets assume we are tired of governments and banksters that are using us basically as slaves . We decided to create a free state in random country. It is a place where anybody can do what they want. No one is forcing you to do anything and no one is looking at your hands. It is nice place to live in so we are inviting friends to join us. But other states see this and they are simply sending people to us and they are poking some of us with a stick laughing. We promised that our state will be free so we cant stop them because it would be breaking our rules. The problem is that other non-free states will be pointing at us and telling other people that its stupid to live there because everybody can simply push you around and you wont do anything about it. And because people dont like to be pushed and feared they will agree with them and stay with they slave role because at last they are left alone as long as they obey orders.

Sooner or later people will start leaving this place and whole idea will collapse. The mistake we did here was assumption that other non-free states will leave us alone and people will slowly come to us making us more and more popular. No. It will never happend. Because if people will start leaving other states to join you, then governments and banksters will loose their power and money and they wont allow this to happend.

In order to not let that happend we created militia. People eventually learned that we cant be pushed about and feared easilly. To counter this governments will stop laughing at us and bring tanks and artillery and spread all over the world that we are terrorists and have nuclear weapons ready to kill others. Ofcourse that is not true but who slaves with washed brains will belive?

It is the case with bitcoin. We created tool - free for everybody perfect banking system, where you can save money, transfer value and buy stuff. But now nothing works as it should. There is one simple reason why it is not working. And it is not central exchange. Its bitcoin price.

We already know that to transfer value using bitcoin we have value bitcoin itself because as long as there is fiat money around $0 = 1btc will not work (simple math).
We decided to set bitcoin price using free market. But it will not work also. No matter how much exchanges you have. It will simply not work!

We as community have to setup minimum price for bitcoin. It has to be healthy for it and include whole world market. For a start i would say that $1 should be equal to 1000 satoshi. This means that 1 bitcoin should be worth:

1 btc = 100 000 000 / 1000 = $100 000
(amount of satoshi in bitcoin divided by satoshi price)

This is minimum healthy price for bitcoin (its not set in stone we can decide to raise it but not lower). And here is explanation why.

As long as price for bitcoin is regulated by free market it will always be low. Because everybod with huge amounts of fiat he just printed, can just come, buy alot of bitcoins and dump them next day. People will fear as now, they will panic and sell below its minimum. They will start to doubt and leave. Press will be laughing at us and no serious business will ever come and look at bitcoin because he will know that its not worth the trouble.

This is why we have to setup our militia. From now on every person who belives in the bitcoin future have to become its central bank. You have to accept your job and take full responsibility for it to fail or to succeed. Yes you might be rich in the process but its not the whole point. You as central bank manager have to buy every bitcoin that is priced below value we agreed is healthy for bitcoin. And thats why you have to own alot of fiat money. It is not going to be easy job and you may loose money in the process. But every new business is risky. Especially if it is revolutionary.

Now why the price have to be set that high? Answer is simple.
1. it prevents from buying and dumping easilly. Now you would have to own much more money to do this.
2. it is healthy because now everybody can transfer any amount of money and not crashing price at the same time. Consider this. Now there is 11 000 000 coins at the market. At one exchange you have (lets assume) 1% of coins available. You can buy 110 000 coins at any given exchange. And now what if price is equal to:
  a. $50 you can buy and transfer $5 500 000 which in global market is laughable and if you buy that amount of coins to transfer value and sell it next day you will crash the market even if you didnt wanted to. This will lead to huge price differences on each market too.
  b. $100 000 it gives $11 000 000 000 000 which sounds better if we would like to transfer large amounts of money and not destabilise market. Which means more reasonable and bigger institutions might start to consider bitcoin as item they want to use.
3. Higher price means the market is way less volatile and people can save they money without worring that next day they will have nothing. And price increase would equal usuall fiat inflation.

To sum it up there are two choices. One is to set minimum price for bitcoin, accept your new role as bitcoin central bank and stabilise price at healthy for bitcoin values. Allow free market as long as price is higher than minimum.
Or leave it on its own hoping banks will leave it alone (which will NEVER happend) so you can expand without problems. If you choose second option then you can simply close this business because people will learn they can only loose money with bitcoins, that its a tool for gamblers and speculants. And the longer we will wait with this the worse reputation will stick to bitcoin and the harder will be to recover it.

Centralised or decentralised exchanges are not that big problem as long as we allow free market to decide for us if bitcoin will succeed or fail. And it will fail if price will be low because low valued bitcoin is simply useless and function only as geek niche tool. Relying on free market its like saing that its not my responsibility for this. And its wrong assumption. Bitcoin future depends 100% on our community and nobody else. Banks wont do that. Governments either.

Im not promising you easy money. Its responsible job and you can loose all your investments because IF we manage to call our militia who will be defending us and stabilise price that way, then governments WILL bring guns and tanks on us and the real battle will begin. Now they are only playing with us having fun. Decide.

We as community can act to give a lesson for persons who think they can just come and try to fear us. We just need to remove all sell orders up to $300 so they would have to rebuy they coins for much higher price.

Bitcoin Templars Treasure game.

btctreasure.com

Player profit 30%, price increase 50%, no random reset, 24 hours idle reset.

New feature added: Hidden Treasure.
This item will give its owner share of current round income:
 - Gold 9%
 - Silver 5%
 - Bronze 3%

Player who owns Treasure Map and wont sell it in the 24 hour period will end current round and become Gold Hidden Treasure owner.
Current Hidden Treasure owners will be downgraded by one level. Gold becomes Silver and Silver becomes Bronze.
When Bronze player will loose his Hidden Treasure, we will automatically send his profit to address he provided to us while buying his Treasure Map.

Hidden Treasure gives you income for 3 following rounds, gaining 9%, 5% and 3% of every map sale in the game.

If you have any questions or ideas please post in this thread.

Good luck with your Treasure!