Imagine we are in 2100 and we have developed means of space travel allowing us to move way faster than the speed of light to other solar systems.

How cryptocurrency transfers could work if we are in a distance of 15-20 light-years from Earth?

What if magically, the real Satoshi would come back to the living, confirm he is the one and state:
"Dear all, you misunderstood the purpose of the creation of Bitcoin. It was supposed to be a cryptoCURRENCY, not cryptoINVESTMENT, and we need to go back to the roots, let's double the supply!"

Do you think people could follow him?

Here at Linkkoin, we are bullish - but we do not expect the price to go up 1000% like it was with Litecoin last year. But getting close to ATH is a very possible scenario, especially if the hype will be spread on the sources of news which are not focused only on cryptocurrencies.

Still, for us, there is one important question - how low will BTC go with after-halving correction?

Yes, it is becoming regulated - AMLP/KYC/FATF Guidelines are trying to make a cryptocurrency environment as similar to banking system/wire transfers as possible (what is forming some obstacles which are practically impossible to be fixed). The worst possible scenario is that there will be a list of cryptocurrencies regarded as a pure investment (eg. Bitcoin), which can be traded only if you have a crypto-broker license.

And there are many uncertain things still, because theoretically in accordance to the travel rule, if you send cryptocurrencies from your private wallet to another person (for value over $1000), both sending and receiving party should be verified.

With banks it is pretty easy (you open bank account giving your personal data, including ID) - but what about wallets? How can it be checked straight away that the receiving wallet does not belong to a person living in North Korea or Iran (countries banned under travel rule)?

There are many elements like that, which fit and work well for traditional banking system, but not really with blockchain.

Mamy dziwne wrażenie, że pojawiłyby się na wielu stronach tymczasowe limity wypłat lub przerwy techniczne

But in most countries, unless we are speaking about golden coins, you do not buy gold. You simply buy a paper declaring that you are an owner of some gold stored somewhere (and that you own eg. 10 oz. of gold in 12 kg bar stored 2000 miles away from you).
So then in practice, it is less physical in form than your BTC stored on hardware/cold wallet at home.

If we go to buy at bottoms and sell on peaks, it is worth to note, that with bottoms in cryptocurrency news we see panic ("bitcoin is dead/is it a dead cat bounce?") and on peaks total hype (remember when in December 2017 even on a breakfast TV those celebrities were speaking how wonderful BTC is). Of course it would not give you 100% chance to find when exactly the bottom/peak is reached, but you can find out when it is close.

This is really good information, as the bigger the market cap and trading volume, the harder it is for whales fully control the market.

Well, it was expected. Still, he could make it in a better way - like eating a candy shaped after his own penis.

Do not forget about the speed and cost of international bank transactions - if you would like to send money, it can take even weeks (between 1st and 3rd world country banks) to handle the transfer, each corresponding bank has its own transfer fee (in some cases it can consume even half of the transferred amount!), if you miss a daily deadline - it might be that even in your own country money sent on Friday will not reach their destination by Monday.

With BTC you can send money much faster, wherever and whenever you want.

This is precisely why privacy coins cannot be listed by licensed exchanges (Japan), are delisted from or each of the users of exchanges is forced to be subject to extensive KYC procedure.

This is a difference between a small individual investor and regular investor. Individuals in crisis spend their savings/sell investments to survive, regular investors (if selecting the right asset) buy at "discount price". And many of the investors seeing/expecting huge losses switch some of their portfolios content from stocks to "safe haven" assets like precious metals or (this still needs to be proven, as BTC came into existence after the last financial crisis) Bitcoin.

Well, no trading is an easy, especially frequent one (but daily trading can give you the biggest ROI rate if done correctly). With BTC nevertheless, if you don't want to spend all of your time watching the charts, so far there is one strategy which maybe is not generating the most profits, but is proven to work almost all the times, deriving from HODLing.
1. You buy BTC when there is a panic and in media, we get the phrase "Bitcoin is dead/is it dead cat bouncing", with price at bottoms (like late 2018).
2. You sell BTC where there is a hype (December 2017) in media.

Example: You sold 1 BTC when BTC was at $18000 level (December 2017). Then, at $4000 level (close to the bottom, when there had been a lot of talking about "crypto winter"), you bought 4 BTC. If you sold them close to last year peak (there was a hype!) at $11000, You would have had $44000. Then, going back to the end of 2019 with this "panickish" hovering around $7200 (with gloomy news) - you could get ~6BTC.
Now, we are expecting BTC price to rise due to the halving this May.

So far this scenario has proven to work (and we are wondering, for how long this scenario will be able to get repeated unless not valid anymore and all the panic/hype news will stop reflecting the real situation).

Not many actions needed (in the meantime you can work fulltime if you want). Feel free to test it with people who are not very familiar with Bitcoin.

Zdaje się, że były sprzedawane jako "produkt kolekcjonerski, nie do spożycia" by wykorzystać luki prawne (tak jak ma to miejsce w tym momencie z tym kryptohazardem).

Quite often there is a misnaming the product - often debit cards are called credit cards as well (as credit cards came to existence before debit ones), so then for the sake of convenience, many people use the same name. Anyway, for the purpose of making transaction itself, there is no real difference for both user and company receiving payment.

Nie będzie prób analogicznych jakie miały miejsce względem tzw. "dopalaczy"?

Of course the smaller the amount the lower the risk and for single $50 transaction buying a hardware wallet may not be the best idea, but for $1000+ (unless you use it for immediate payment/you are a daily trader) this is possibly the best available solution.

As well it is very possible that from now onwards there will be a bubble pump because of the halving, shortly before it (like with LTC last year) strong correction.

Sometimes the algorithms governing removal of youtube accounts are working in a bit strange manner, but anyway - anyone who knowingly promotes scam/Ponzi schemes should take full responsibility for that.