Capital punishment is in place in order to sanitize the society for a crime committed. The reason behind death penalty varies among countries. Imagine a society were there is no punishment. I am with the opinion that all guilty people deserve to be punished in proportion to the severity of their crime.If its death punishment so be it. This will serve as a deterrent to others .It will prevent others from attempting that crime or the number of people that will want to commit same crime will reduce. There are and will always be victims of circumstances that is those wrongly accused with probability of 0.001

Quote below says it all.

"If we execute murderers and there is in fact no deterrent effect, we have killed a bunch of murderers. If we fail to execute murderers, and doing so would in fact have deterred other murders, we have allowed the killing of a bunch of innocent victims. I would much rather risk the former. This, to me, is not a tough call."
John McAdams: Marquette University, Department of Political Science

It will not be surprising if Amazon start accepting Bitcoins as means for payment.  Amazon in 2016 did partner with Digital Currency Group with its Web Services. Digital Currency Group is one of the biggest investors in bitcoin and blockchain-based startups.For Bitcoin to be $10,000 before the end of the year that is asking for too much I doubt that even though no one can predict the price of bitcoin. Max 6k may be

Yes you can but it's too risky to depend on Bitcoin as a means of livelihood.You can  invest your bitcoins earnings outside bitcoin as a security.If any thing should happen to crypto currencies you have something to fall back on.

Bitcoin is uses a decentralized system of distribution where different computers update the ledger and the hash functions .Blockchain are hacked proof because there are millions of blockchain users which makes it difficult to to corrupt. Each block chain links to the previous. A hacker cannot not steal all of the 20M coins of Bitcoin. Remember they are in different addresses and needs different level of block authorisation before acceptance.

Cryptocurrency is volatile so we should expect not only reduction but fluctuation in future there will definitely be price swings .

 Just like the name implies a whale being the largest creature in the ocean so is the whale in bitcoin markets.They are  those with  big money  say hundreds of thousands of bitcoins .They are mostly institutions.