that picture doesn't really prove anything though! it might be another advertisement technique that Samsung is using to say their phones are powerful like the one they did last year where they took old phones back for recycling, attached them together instead and started mining bitcoin with it!



p.s. it is also pretty weird that the image is showing "bitcoin" symbol in the wallet alone but the popup message says "supported cryptocurrencies: ETH"!

wrong.
mostly because you have to way of proving this and your stats saying "substantial percentage of population" is only your guess. there has been an increase in number of people investing in bitcoin and getting involved with it but most of it was NOT because of corruption,... it was due to the fact that cryptocurrencies have been advertised a lot in the past two years because they wanted to introduce their own cryptocurrency (Petrol) and needed the awareness increased.

@gentlemand mentioned an important fact, additionally Venezuelans aren't trading bitcoin on regular exchanges such as Coinbase, Kraken, Bitstamp,... which are determining the price which means whether they buy or sell it won't change the price.

make sure to preview your transactions and double check what is happening because you have to pay the change manually to the "foreign address" and if you pay lower than remainder then you'll end up still having a change address automatically generated by the wallet and the "remainder" would be sent there which is not what you want.

certain prices are simply impossible to happen because of the huge surge of buys that the lower prices are going to cause. and your logic here for this random price guess doesn't even make any sense mainly because you are missing the fact that if someone is waiting for a lower price to buy in (like $100) then if price reached $100 then he would wait more for lower price such as $50 and if $50 was reached then he would wait for $20 and so on. these type of people do not form the market, they are a minority that is mostly known for their FOMO buys for example those who are waiting for a ridiculously low price will start FOMO buying when price crosses $4k and mess up everything by creating a big surge upwards! they can also be referred to as "whale food".

i don't know whether they "should" do it or not but it is something that is going to happen anyways. bitcoin is being adopted and that is a growing matter. sooner or later it will be considered an alternative form of payment in a lot of countries and most part of the world will see it that way. you can already see the multiple countries that have accepted bitcoin as a currency such as Japan.
i guess another way of asking this question is whether a country wants to do the opposite of what the rest of the world does or not?

despite the word "cryptocurrency", they are not used as currencies apart from bitcoin. in fact majority of altcoins are not even created to be used as currencies hence they are not capable of doing so. they are instead created for pump and dumping purposes so that is what all of us are using altcoins for, even if some of us don't like to admit it!
there are some good ideas here and there among them too which can be seen as another usage of them which is exploring other areas of blockchain technology. but the cases are so few.
that only leaves bitcoin which has multiple purposes, the volatility provides a good asset for trading and making profit. the security and decentralization of it makes it a good store of value, and its design makes it a good currency.

this seems to me like another one of those articles that tries so hard at exaggerating the position of China this time only because they have dedicated some funds to certain areas. although that amount is high but it doesn't mean they are going to "rule crypto". China is like many other countries that are trying to stay ahead of the curve when it comes to the blockchain technology and adopt it sooner than others. i still don't see anything there that gives them any more advantage to other countries.

it is not news, it is just you looking around to find any kind of bullshit that you can find and write some even bigger bullshit about it and post it on your useless website then post the link here thinking you are generating traffic!

what i explained above does not change that.
what happens to ECC is that we already have all those points (the points on the curve which are forming the group) and numbers (from 1 to n-1 which are the private keys) and we know that if we multiply each numbers with the generator point we get another point that is  among the points that we already have. what makes it secure is not about knowing what the points are, it is about not knowing what number was multiplied by the generator to get to that point. again point being the public key and number being the private key.

i don't know why you mention the term "secure hash function" but the "multiplication" is purely math, think of it as a one way math that you can solve in one direction with fast speed but it is impossible to solve in reverse. in other words in above example it is super easy to multiply G=(6,5) with d=2 and get to point=(3,1) but if you have (3,1) it is hard to calculate what d was.
of course it case of p=11 (1 bit) the solution is easy but p in reality is 256 bit for bitcoin curve so it is impossible.

there is no misunderstanding here. the day they started deleting accounts from their database to take their money and stopped answering any complains, that days was the day they turned into a scam exchange. if you choose to still visit the site that is on you.
and that is the story with all the exchanges, they are OK for many years and then overnight they turn into a scam. there are prior signs of course, but it happens fast. MtGox, Cryptsy, Bittrex, ... and a lot of others have gone the same route.

most probably we won't see any ICO bubble ever again because these silly methods of taking people's money only work once. but we will see other similar methods of taking people's money!
basically the altcoin market has always been mostly like a gambling game for most people. they go into these "groups" which may be called a premined altcoin, an ICO, a STO,... then put their money into the bowl of the owner. sometimes they get lucky and make profit and sometimes they lose. but they continue playing the new games as they come along and discard the old ones. for example these days if a coin is 100% premined people won't even look at it twice. but a couple of years ago these things were as hot as ICO in 2017.

@jackg raised a pretty interesting question.
the answer is no, not all the points correspond to a private key. here is how things work (as far as my understanding of elliptic curves go):
when we have a curve over F_p where p is a prime, it consists of p number of points. and that is denoted by #E(F_p).
Now when we choose a point on the curve we are practically creating a "sub group" of those points. so if for example our curve is over prime=11 and we have (y²≡x³-7 (mod 11)) that creates 11 points for us:
{ (2,9), (2,3), (3,1), (3,10), (4,4), (4,7), (5,0), (6,5), (6,6), (7,3), (7,8) } and point at infinity

if we choose one point from this group like (6,5) as the generator then dG can only produce the following points:
{ (3,1), (3,10), (5,0), (6,5), (6,6)} and point at infinity
so we practically are creating only 5 out of 11 points on curve with our generator.

and 'n' which is order of the base point is showing how many points it can generate. so when n is smaller than p so is the number of points that G can generate.

Q1.
this question isn't clear. you mean something like this transaction:
https://www.blockchain.com/btc/tx/cce09841f35cf8f3a0f1f194746837a2d4dec15e7db469ba52d82c3d9deb4632
there are different "senders" each having a different address (a different key) which they all are creating a single transaction.
if this is what you had in mind then it has nothing to do with multisig. it is a feature that existed for a long time, where you can spend multiple transaction outputs in one transaction and sign each of them with their respective private keys since they already are going to have a separate signature field inside the final tx.

Q2.
as far as i know, it is possible. because the way that bitcoin is using multisig is very primitive and easy to implement. basically you concatenate multiple public keys and then sign the tx multiple times and then concatenate those signatures together too. so as long as each of those altcoins support some sort of scripting language where you can tell the interpreter to "check_multisig" then they should be able to do it no matter what signature schemes they are using.
however, when we move to Schnorr and start using collective signatures when you just have 1 sig and 1 pubkey they won't be able to do it unless they are using Schnorr or any other DSA algo that allows safe signature aggregation.

the short answer is you should not "invest" in that bot.

basically when you are a newbie, you should stay away from using any kind of trading bots because they will NOT help you at all. no matter what they are. bots are not magical tools to make profit for you, you still have to have some experience in trading and specifically about the market that you are entering before you attempt making any profit.

but also checking out the topic of this bot you are advertising here, it doesn't seem to be that popular. which means it may not even be legitimate and best case scenario is that it has bugs that leads to your money loss.

you mean O.T.C. trades? as in Over the Counter?
then the answer is no there isn't any OTC price charts or brokers or any kind of stats because it is "over the counter".
here you can read more details about it in general: https://www.investopedia.com/terms/o/otc.asp

in our case OTC trades are usually referred to trades that occur anywhere but exchanges, which then usually translates into p2p exchange which leaves no trace so there is no "charts" to see.

what people think, or more precisely what they "say they think" is not an indication of what is going to happen next. otherwise price should always stay the same or go in one direction only because at all times there are a lot of people who only think price is going to go in that same direction. for example in 2017 when price was struggling to break the ATH of 2013 and fell, there were A LOT of people who were saying they think price will continue to go down and reach $200 again.

what you say about introducing people to LN by having an LN faucet makes sense but there is a difference between giving away bitcoin today and back in the days when the faucets gave 5 bitcoins at a time. and that difference is in the way you obtain bitcoin yourself. today you have to buy it but back then you could simply use your CPU power to find a block with 50BTC reward and then give away some of it to others to introduce them to bitcoin.

on top of that you also have to consider abusers that exist today compared to back in the days! back then that 5BTC/IP/Day wasn't really abused that much. the IP restriction was more than enough to keep it running for a long time. it even received donations from others! today however if you set up a faucet it will be attacked by hundreds of bots and would go dry in an instant if you don't place some sort of "ultra bot fighter". and the result is that you aren't really giving away bitcoins to new people who want to learn about LN, you would be giving away bitcoin to those who already know it and also know how to suck a faucet dry.

hard wise work always pays out. you need to know what to do and be wise about it.
the last part is what i am doing right now too. in  current market situation the focus of mine is on earning as much as i can. specially since earning at the current time is so much more than when we were at the ATH. any work you do is still paying pretty much the same amount of money but that is translating into more bitcoin so you technically can earn a lot more now.

it is not impossible to create a public key without a private key. it is just a pointless thing to do!
a public key is a X and Y coordinate of a point on an elliptic curve. so it is easy to find (x,y) that is located on this curve, you just have to select a random X value and then calculate its Y from the EC equation (y²≡x³+ax+b (mod p))
not all X values are valid though, so you may need to test multiple times to find one. here is a random one i just created:
<45009742619328706989209721481469356495466089759340121731212924137964964827830><55658394098303987375017676168753804827844976155954353767074160408101272378468>

here is another X that fails because it is invalid (can't find square root modulo P of it)
51410043668478994359633259752192489159154639417244457446419652830244474644848

i am sensing you are from Africa, so why haven't you already translated the paper into your own language and why wait for others to do it when you can do it yourself?
the pull request is here: https://github.com/bitcoin-dot-org/bitcoin.org/pull/2809
and here is the repository of the translations: https://github.com/wbnns/bitcoinwhitepaper
you can go there and start translating and adding it to the others. after review it will be added.