Don't bother to invest on such shady cloud mining, offers cheaper price and free GH/s.
If you want to invest on profitable cloud mining, check https://icerockmining.io/
they offers two options; to be an investor or to be a miner with 2 years contract.
It is a profitable investment for sure, as you can purchase rock token which still on ICO phase right now for $1 and they will buy back this token for $3 on May 2018.
It takes time obviously, there is no such easy-instant money if you invest on legit project.

I have checked samourai wallet on play store for android, and it's still on development (unreleased), even though we couuld be an alpha tester (3).
And there is another version of bitcoin wallet which released by samourai developers I guess, called sentinel, isn't it?
There are few wallet developers which have enabled segwit address, so it would be great to install this wallet after it's officially released on play store.

Actually, bitcoin isn't the first digital form of money, there are a lot of digital fiat currencies issued by banks and payment processor//third party in form of debit cards which have been used more than 50 years or over a century. If you ask about bitcoin replace other forms of money? It may not, even for another century due to people still need cash for daily transactions, especially in third world countries. Digital form of currency has some limitations/disadvantages, and physical form of money such as cash or even gold will always have its advantages compare to bitcoin.

How to avoid greediness? By using a plan, treat trading as a business, set how much % profits you want to achieve, put sell order to execute as long as you have profit.
But, the first thing is to assess potential of the coins, whether it may rise up even further or will stack at some point, which people more likely to sell at that point.
It may be different if you trade some famous coins or new coins in the market, people tend to dump new altcoins which just listed into exchanges.

Bitcoin has 50% chance to reach $15K by the end quarter of 2018, if bitcoin still on track without any bad news such as a big country ban bitcoin, mining activities or an exchange get hacked. Consider bitcoin usability, development, acceptance in many countries will encourage people to adopt bitcoin whether as object of investment or digital currency for daily basis transactions. If there are more countries treat bitcoin as a legal currency such in Japan, we may see bitcoin reach $15,000 before the end of 2018.

They claimed 8 Samsung Galaxy S5s can mine with superior energy efficiency compared to a standard desktop computer, but how about hashrate? results?
whether this development really aim to support bitcoin mining or just wants to maintain the value of their devices in long term.
However, it's better than nothing, people could re-sell their old devices and Samsung may recycle all of those devices, win-win solution.

It can't be accessed by common browser such as chrome or mozilla? as I can't access this wallet site.
Or I should use onion browser to get through? Or else, it's not supported in several countries?
There is no update from Op? to gain trust, you should provide the codes or algorithm to Github, so everyone could assess your wallet.
Meanwhile, you should mention some features of this new wallet, more details to make sure it's a good one.

Indeed, core developers have never stated to support 2x hard fork as it may harm the entire network or become more centralized, controlled by miners, and so on.
Core developers have made themselves clear about this matter, support segwit but 2x hard fork never been accepted in the first place.
Moreover, 2x hard fork more likely to be an altcoins called btc1 if it's not meet the requirements of consensus, 85% right now.

Fortunately you ask before give them free money, this site is too good to be true, have been around over a year and still be able to deceive newbies? LoL
You can simply google and type "bitminer.io scam" then all the proof about their scam activities and related accounts-sites will be there.
Remember, there is no an easy-instant money without any effort and go through time to gain profits, even for legit project could be ended bad if something happen.
To invest your funds, not scam is not enough, do some search and consider few things before invest into a site or project.

Indeed, an investment to generate 5% profit from $100 seems impossible, Op want $5 everyday which mean $150 in a month.
You can make $50 or max $100 but through a hard way of trading, due to there is no easy investment offer to give you 5% return everyday, or else that will be a scam project. But, for newbie? there is no chance at all, if you have no skill to jump into trading world. Please remember, profit is gained through a long way and it takes patience. Unless, you have huge capital to start, not just $100.

I wouldn't say bitcoin is better than gold, or gold is better than gold due to both has it own advantages which another doesn't possessed, gold has "physical form" and bitcoin has "digital form". Whether people consider it as store of value, digital currecy, digital gold or an object of trading, but the most attracted thing is the value of bitcoin, over $5700 and still continue to rise over time. Give it more time and regulations from governments, it will become one of the major currency being used in this world.

I prefer to invest on Ice rock mining. This is a guaranteed investment.
Ico is live now, and you can purchase 1 rock token for $1, on December you can choose to be a miner to get 1 GH/s per 1 rock token or become an investor which IRM devs will buy back this token $2 on February and $3 on May 2018. ICO will end on November 07, 2017. Download whitepaper https://icerockmining.io/whitePaper.pdf
Please visit https://icerockmining.io/ for more information.

Ben Lawsky told it now makes even more sense “in the context of China” (might have meant that if China bans ICOs and exchanges, why shouldn’t American authorities regulate the crypto market just a bit).
LoL, who is this guy? another person which stated China ban exchanges which is not happened in real world, just in his imagination.
Steve Wozniak and McAfee are better to see into this crypto world and share their thought about bitcoin, even Bill gates comment positively.

Looking a bit about Lawsky, he is an employer at New York State Department of Financial Services
Benjamin M. Lawsky is an American attorney and New York State's first Superintendent of Financial Services serving through June, 2015, and former Acting Superintendent of Banks serving through 2011. Wikipedia

I don't know, but most people from banks serving seems against bitcoin, due to bitcoin is a better monetary system compare to bank system?

Trading is a risky business, whenever you jump in, be prepare to lose.
I consider trading as a gambling activity, you put money on the line and it may gone for good, right? Which many traders have experienced it.
In this case, if the coins are shitcoins, I prefer to sell in order to cut loss. But, if it is a famous or potential coin, I prefer to keep it until the best time to sell it.
How to control emotion? Treat trading as a risky business and be ready to lose at anytime, put some money that you can afford to lose.

Everyone may want to invest on the newest project of cloud mining which still offer cheaper tokens ($1) right now.
You can visit their website https://icerockmining.io/ or ANN thread https://bitcointalk.org/index.php?topic=2196082.0 for more information.
This is a good opportunity to invest your funds due to they offer profitable investment for everyone, whether you choose to be an investor and get tripled profits of your initial capital on May or be a miner for 2 years contract.

Most people attracted to bitcoin due to its price keep increasing over time, makes them thought it will be great to invest in bitcoin and wait for long term or just trade it in short time to extract profits through trading or arbitrage. That's why bitcoin price always fluctuate and consider so volatile.
Bitcoin meant to be a digital currency running on blockchain which is better than banks system, used for daily transactions to buy goods or pay services, but the thing is; limitation of acceptance bitcoin on merchants, stores or business in most countries. It will be different if you live in Japan where you can use bitcoin to pay everything in daily basis.

Considering bitcoin price movement, it's more likely to reach $6K before next hard fork of bitcoin gold.
The new ATH is $5900, it will be easier to surpass it due to bitcoin development and acceptance across the world.
But maybe bitcoin hard fork is the most influenced news which encourage traders and investors to gamble with bitcoin price.
I wouldn't so proud of it due to bitcoin price will be fall down after reach new ATH instead of keep increasing over $7000 in this year.
But, nothing for sure in this market, we can speculate but if somehow a big country such as China or US ban bitcoin or exchanges, it will be like a dooms day for us.

There is no any legit btc doubler miner sites obviously, put your money there and then it's gone for good, doubler sites different with mining sites a.k.a cloud mining.
You have to learn how to recognize such scam sites, there is no easy money and ROI within 48 hours. Even most cloud mining such as genesis mining offers min 6 months ROI, the best part of their service is lifetime contract which always attract more people to invest in their site.

I consider your questions has been answered, regarding how wallet work.


About fees, wallet developers have arranged how a wallet set fees according to the network condition.
Some wallet are better than others for sure, I recommend electrum wallet and nothing to complain about this wallet.
But, I've been using Blockchain.info wallet for a long time and the last few months it has an upgrade which you can set customize fee for sending bitcoin.

Most people will say; in Feb 2018? it's impossible, bitcoin's relative price can't increase by 4.75 times and reach $27K within 4 months.
Even though Trace Mayer has $150 Millions to invest in bitcoin, it won't rise to $27K, unless 1000 investors with $150 Millions doing the same thing.
Yes, bitcoin price will rise and reach new ATH every year, but bitcoin price fluctuate due to people tend to trade it instead of using bitcoin as medium of exchange.