With all due respect, it doesn't take any Ph.D to figure out the best cryptocurrency is indeed Bitcoin.

Well, how can you know what state is safe to sell bitcoins locally what other isn't?
I like the idea of the total anonymity meeting with a real person gives you, but I don't wanna get into trouble.

I was reading the other day about new revolutionary mining system which would basically consist of an underwater (or some sort of cooling liquid) mining cave, that would keep the machines cold 24/7 and running at maximum capacity. Anyone has the link for this?

What if they discover that you own millions of BTC when you buy something? they could trace it back through the blockchain.

How to avoid this? Is mixing the coins you are going to use before you buy whatever enough?

Not that I have millions, in fact I only got 2 BTC, but who knows how much 2 BTC will be in 10 years.

This is a pretty basic realization, the fact that Bitcoin will love longer than anyone posting in this forum right now is pretty easy to see if you have basic notions of the current socioeconomic situation and what Bitcoin constitutes as a paradigm shift. Tons of other similar projects and a lot less relevant will still be alive as well. There is always people willing to run nodes.

Will you have a lot of kleenex? because im assuming after all of this FUDing it just means you've sold already, and aren't buying back.

I believe is not necessary that fiat national currencies get replaced, first of all it's improbable that that would happen for obvious reason, it represent a huge paradigm shift. Maybe in 100 years.. not now.
Second, a duality of fiat with massive inflationary QE and a sane deflationary BTC actually benefits the former, since it gives it an even stronger reason to exist.

Bitcoin will never be "forgotten". Look at other p2p or projects that need nodes like Tor or even Freenet, there is always people willing to deliver resources to keep it alive.
The difference is with Bitcoin people will see a necessity to use it bigger than ever before, as economical control keeps increasing..

Darkcoin will forever be some niche coin to buy dodgy stuff on dark markets. It will never be a direct competitor to Bitcoin for obvious reasons, mainly the one I just stated. Get some perspective.

It will take a lot of time for the flatness on that graph to translate into the Bitcoin price, which is great for us early adopters since it gives us extra time to benefit from the ups and downs.

Is it recommended to delete your blockchain and download a fresh one even if it works just ok with your current one? It would be pretty annoying since it's very slow to download the whole thing, but even then, im pretty paranoid and i want a correctly working blockchain.

How im lying? You can make an address in a cold storage wallet in your house (will NOT get hacked), then use this public address to accept BTC on your shop. Whenever you need BTC get it out of your cold storage, whatever amount you need (just like having a safe with cash, and putting the money you need for the day in your wallet, in this case in your smartphone etc).
You can use a mixer after extracting money from your cold storage for more anonymity, before spending it or moving it elsewhere.
You don't need to rely on third parties. Bitpay doesn't need to be the new monopoly to accept payments, fuck that.
As for exchanges, there will be a day where you don't even need to convert to fiat because everything will be easily done thought BTC. If you still some fiat for whatever reason, you can get it using LocalBitcoins if you don't want any paperwork. Problem solved.

Im really interesting to hear what those investing alternatives that would deliver a better result than BTC are.
In any case, by 2020 it should be indeed higher, way higher than the last ATH.

Im basically not rulling out BTC because:
Their block size is bigger, not much but should handle faster transactions and higher amounts if there is ever a problem with BTC (even tho if it keeps going up it will be the same problem all over again)

The creator is related to Google therefore loaded with money. Could bump the price at any given time to put the coin back on the map.

Writers get paid by amounts of traffic comming to a website, that guy is just throwing in your average buzzword to make a clickbait article and get tonts of visits. Lying and half truths sells unfortunately.

This is a great insight into how much stress the mining machines go through. Imagine having to do that millions of time daily. That shows how secure the network is against attackers.

If I had a business and had to give a public address to get payments I guess it would be cool to have a vanity address so people can pay there, but then this address would need to split those payments into different addresses to make it more anonymous. I wonder if this can be done.

It's very hard to estimate what all those transactions means. In fact I think it's impossible, it's a mix between trading, speculation, buying of goods and services... all those transactions that get done in person for cash will never have any meaning unless you are part of one of the 2 parties.
As decentralized exchanges start being operative, it will be even harder to track anything.

Just think about it. Who would you trust more about a 2 year prediction, Andreas Antonopoulous (which says "give it 2 years") or some guy coming from old money whose entire portfolio is made out stuff that can migrate to Bitcoin in the future if it's a success? do the math.

10K is a conservative price for me long term. 5000 is pretty much guaranteed. When comparing the current marketcap of BTC with other's of similar nature (even tho there is nothing similar to BTC, but for example, VISA, Mastercard, Paypal etc). When BTC takes the world, it will have the marketcap of all of those combined.