I'll be happy to help you with your research.

1- Bitcoin balances are represented as a series of inputs and outputs on the blockchain, and each transaction consists of an ID with a group of inputs and outputs connected to it. Bitcoin addresses are hashes of public keys, which are calculated from their associated private keys by solving an elliptic curve equation, because the two are represented as a point on an elliptic curve. Bitcoin features are drafted by creating BIPs which are incrementally deployed as the relevant specifications are implemented in Bitcoin Core.
2 - Clearly the shares of bitcoin are more popular because the majority of users store their bitcoins on an exchange, which lets them rapidly trade their holdings for other assets, so exchanges lend themselves well to trading.
3 - There is still plenty of enthusiasm for bitcoin, the outside world gets it mainly through news flashes that the bitcoin price is going up. For example there was a surge of interest in bitcoin after PayPal announced support for holding bitcoins inside their service.
4 - Even though I said most people are putting their bitcoins on an exchange, I do not recommend this because the exchange owns the private keys to your addresses and therefore your money. That means they can forfeit your money at any time for whatever reason and there's nothing you can do about it. And as the old saying goes, "Not your keys, not your coins" so I recommend everyone download a software wallet such as Electrum, and verify the download hasn't been tampered with, and transfer your coins there ASAP if you're not trading with them.

Can't guarantee it would be up to 3 sentences. But, from what I have learnt, Bitcoin is a financial or monetary network. It's decentralized and hence is run by the Bitcoin community; nodes, miners, and peers involved in transactions are all connected and none is dependent on the other, so you do not need to trust them, as far as you've verified you're on the right network.
Bitcoin is also open to different interpretations, to some it is a speculative asset, to others a SoV, and some others see it as a currency. Everyone can discover what Bitcoin means to them.

I do not think any is more popular, it depends on what the individual can access. Regular investors can hold actual bitcoins and as such would likely go for that, institutional investors are limited and would likely get exposure to Bitcoin through bonds or mutual funds

Yes, there's surely enough enthusiasm.
Most of the interest in Bitcoin these days may be as a result of its fiat value. During the early days I would assume people who were interested were mostly enthusiastic about the network and underlying technology, however those people are still in the space and more have joined in, either they were attracted by the price or product.

Research, learn and unlearn.

We'll i think i did the best thing possible for what i have to do. I hope to get as much reactions as possible!

Again thank you for helping me!

Also Upgrade00 thank you for helping me!

A trustless community where it's trusted enough to be used by a huge community. A safe asset but with a highly volatile quality, which makes it both hated and loved by investors. It's pretty much a system where transactions are done without any influence of a third party, which makes it a huge boon since you can guarantee that no type of corruption or anything is happening inside its transactions.
I'd answer Bitcoin, but I think I'd be quite the biased one, especially because I've never had the opportunity to explore the entirety of the world of investments, and not that I plan to, at least not now.
Why yes, right now as you see most of the enthusiasm is about the price, especially with it moving quite high right now, almost standing at the $20k mark, though it's also a sad part of how most of the enthusiasm is about that, and not how Bitcoin is as a currency.
Learn the basics, especially the proper way of using wallets. Most people assume BTC is a scam due to misplaced knowledge, and really it isn't bringing anything good since the majority of those that listen to it are the same people who don't know anything about Bitcoin.

Bitcoin is a type of virtual currency aka cryptocurrency. Bitcoin has increased transparency of assets. The reason I bitcoin is it's controlled by none.

Obviously, Bitcoin is popular now. But it deserves more popularity.

Yes. And believe me. It's increasing.

Before diving into anything, you need to do research. Before starting journey, they need to do research and read other's experience.

1. Bitcoin is a phenomenal phenomenon of the 21st century, the greatest invention of mankind since the Internet.  Bitcoin is a value transfer protocol (in the virtual space). 

2. Only Bitcoin has value.  Derivatives have no value. 

3. People don't understand enough of the value of Bitcoin.  In the future, most people on planet Earth will recognize the value of Bitcoin as a unique deflationary asset.  The next decade (2021 -2030) we will see the excitement around Bitcoin. 

4. Buy Bitcoin.  Hodl.

Yes, this is what the forum is all about exchanging ideas and mostly members here are helpful and others are expect. Legendary rank members are usually knowledgeable when it comes to cryptocurrency and you can learn a lot from them.

Anyway, bitcoin is using a p2p platform and run by those who had downloaded the system or software and being part of the network. You can have fully control over your funds without using the third party service like the banks. Privacy is one important key features if bitcoin but sadly most centralized exchange requires KYC. Privacy is one tha could keep you away from thieves without them.knowing that you hold or transfer some money from your digital wallet to other digital wallet.

Nice initiative, I am working on an idea too and would soon be ready for publishing on the forum. To answer question, I'll keep it as simple as possible.

Bitcoin: it is a currency of the web which exists in a Decentralized system on the blockchain network.

Bitcoin is more popular than the years behind. This is what is expressed in the demand which is reflected in it's value as we have it today. Increased demand implies increase awareness as well.

Of course yes, there is enough enthusiasm towards Bitcoin. Awareness is not demand as awareness alone can not readily necessitate the reasons for the boom of a commodity, demand intells enthusiasm and value and bitcoin has got all that in the bag which implies their are growing Bitcoin enthusiast amongst the populace.

I'll recommend that;
* Read more on Bitcoin subject matters to understand it's nature
* Own some bitcoin yourself, no matter how small
* Don't only hoard, study ways to invest and invest your bitcoin as well as checkmate your risk

I hope that what I say from your question can help in the research that you make and I myself do not want to know for the benefit of what you ask, I will try to help as much as I can and maybe it will be different from everyone.
- Formless, Many Seeking, Profitable
- It seems that my opinion is the same, and the process and difficulties experienced and what distinguishes is the system only.
- Yes, especially now that bitcoin is on the rise, it's wrong to miss that opportunity.
- learn and don't immediately do things related to trading without knowing what to do next and don't be shy about asking questions, it's better to join your own local forum so that it can quickly absorb knowledge.