These 5 companies got different projects as of now. But as time goes by, for sure they will start something new. Just like Facebook, they started Facebook itself as a social media platform, and then they acquired some non-social media-related platform like Whatsapp or Oculus VR.
The future projects or future features on their current product/services will be a threat to each other soon.
Blockchain projects are really possible for these big companies, but I think it will take time as these companies seem likely don't want decentralized, time will come.

Cardano can easily knock down by USDT, especially if Bitcoin to dump or we will be entering the bear market.
If you experienced the previous bear market, we saw the USDT really gaining a huge market cap? It is maybe because a lot of people converting their cryptocurrencies to USDT temporarily.
Cardano will be like BNB recently, after few days in the Top 3 it being replaced.

Bitcoin block halving is an event where the mining rewards will be lessened on every 210,000 blocks (approximately every 4 years). And I believe this is one of the solution for the inflation rate, limited supply.

If you will take closely at the chart below, the list of previous halvings was labeled and you see the price action on every after block halvings. I believe the block halving event on Bitcoin is really important, not only on Bitcoin itself but for sure on everyone, it kinda Bitcoin become popular on each block halving which the price is driven by the market, the demand.



Check more here: https://www.bitcoinblockhalf.com/

For OP, why not use the lightning network? Agree with mk4, layer 2 soon will be the solution.
And addition, there are some ways to avoid such high transaction fees, just like consolidation of your small inputs from your Bitcoin wallet, it may help to save transaction fees.
If you check the thread of LoyceV, it shows how consolidating small inputs works here: [Jan 2021] Fees are low, use this opportunity to Consolidate your small inputs!.

There are already a lot of ecosystems that got wrapped bitcoin, or they are pegged in Bitcoin. Just like wrapped Bitcoin on Ethereum, wrapped Bitcoin on Solana network, or the wrapped Bitcoin on Binance Smart Chain which is Bitcoin BEP2 BTCB (BTCB).
I think you are talking the transaction fee under Ethereum network which is clearly expensive now even you transact with a small amount only, but there is already lot alternative, just like on the Solana which I mentioned above.

Honestly, if the transaction fee is the problem here, there are a lot of alternatives with the Binance smart chain which is far better for me.
Solana for example is already proven with the recent first AMM under Solana, which is Raydium. I have tried Solana network, I have tried to do some transactions, the speed and transaction fees are absolutely superb.
But then again, 1INCH is a good DeFi project, they can expand on multiple ecosystems soon, not just the Binance smart chain, it's just a beginning for sure.

I believe this is just temporary. Yep, the expensive gas fees on Ethereum are really sick, especially you are just a small trader. Trading DEX or other Defi apps on Ethereum now is for whale players.

I can't blame Binance smart chain will start to compete with Ethereum, not only Binance smart chain, a lot of alternatives these days that is more scalable than Ethereum, just like Solana which recently started their first AMM, which is Raydium.
Once Ethereum will become scalable soon, people will realize how Ethereum is useful.

Identify your goal first, if you are into trading and want to save fees, then use PancakeSwap / Binance smart chain. As I heard, 1INCH will start to expand to Binance smart chain.

It will not matter in the early stage, but if it will stay forever and in the long term, it's like a ticking bomb.
The beauty of cryptocurrency is decentralized and why it is being ignored?
Ethereum Layer 2 is the solution, other alternatives especially Binance Smart Chain will get hammered by Ethereum soon and others claiming Ethereum Killer, just a matter of time.
No hater of layer 1 protocols or other Ethereum alternative here, I can say they can somehow help the Ethereum network's scalability temporarily.

This is the main reason, I believe! They are competitors of Ethereum for Defi apps, because of Ethereum's problem, which is scalability.
A lot of people also worried about Binance Smart Chain, there is some issue about being a centralized ecosystem and that's why the cost of transaction fee there is really cheap and some of the projects in Ethereum are copied and pasted to the Binance smart chain, which for me, it is already a red flag.
No hate here, I respect the pump  

REEF for me is still early to judge. Especially they are on the Polkadot ecosystem, which is very unique for early projects that will start to Polkadot ecosystem since some of the projects already started on the different ecosystem, just like Ethereum, the popular one.
They are a cross-chained project, so what I will start to see is how Polkadot will adapt to the market, and then this kind of altcoins will follow.

Cryptocurrency is evolving, there are a lot of projects these days now, just like decentralized finance (DeFi).
So, the best process for me is to find a problem solver, a solution to a problem. And the most ideal is that there is already a product or it is already working, not a fan of an altcoin that is hype only, mostly in just a whitepaper and no product at all.

What do you want? High market cap now or those still in low market cap?
I think it is much is to select first more than 5 altcoins, then filter it to 5 altcoins.
Like you find the first 20 altcoins, then each of them you research then just select 5 altcoins that you are interested in and got your attention.

What I am still researching and got my attention these days are Ethereum, Polkadot, Solana, Serum, and FTT. Just my 2 cents

Any ideas if some crypto exchanges will follow Coinbase? Or some exchanges may become bullish about this? We all know that some crypto exchanges these days got their own tokens, which have different uses or benefits if you hold them within their respective platform.
And addition to the Coinbase filing, could be a disaster for Bitcoin or the whole crypto sphere once Coinbase will be rejected?

This method is really useful and I am using it regularly.
The best time to do this method is when the transaction fee is cheap, just like 1 satoshi/byte.
If you want to check the current transaction fee, you can use btc.com or coinb.in or this.

For more information about this, @LoyceV created a useful thread for inputs consolidation here.

Additionally method for buying method these days can be done on average.
Let's say if your friend will buy now at around $44,000 price of Bitcoin, let's say 50% first of $500, her/his choice, then the remaining can be bought next weeks/months, even which price Bitcoin will be.
Honestly, it's really difficult to spot the bottom. But if your friend is for the long term and he will buy and hold then come back in years/decades, the price will not matter for sure.

Such exchanges want to protect their users or customers.
One of the reasons why Gemini or other exchanges only added few cryptocurrencies or trading pairs to there is the market cap, if you notice the list of tradable coins on Gemini, most of them are a high market cap, trading volume too. So it means that the market is active for those coins, a lot of people that are buying & selling.
And also, some exchanges and maybe Gemini too are very strict when it comes to fundamentals, that's why they don't list random altcoins.

Would you rather buy dollars than Bitcoin?
There are a lot of methods how small investors or average people on how to buy Bitcoin even how it is already expensive, just like DCA (Dollar-cost averaging), buying the dips.

And if you are thinking for the long term, the $100k price of Bitcoin for me is extremely cheap. If Tesla able to buy $1.5b worth of Bitcoin at around the price of $30k, why us, small investors, or average people can't buy even a few bucks of Bitcoin?

Which tweets?
Elon Musk is a funny person sometimes. Some of his tweets are purely just for fun or meme purposes, some may sarcastic.
Even how Elon Musk will make some tweets in the future, people will start to adopt it, people will learn and start to treat it normal, one example is the FUD spreading on random news articles or sources a few years ago.

Bitcoin price is volatile could because of some reasons.

• Speculation - different views on Bitcoin. If you are not familiar with or no knowledge at all of Bitcoin, you will not buy it.
• Bitcoin is still early - a lot of people still not introduced to Bitcoin. Less adoption, less trading volumes.
• 24/7 can be traded. Compare with stock markets that they have opening hours and closing hours for trading

Comparing other assets with Bitcoin especially with the stock market is good with the price only, but technically on fundamental, they are totally different. And they're also some charts that showing some correlations with other assets' price on Bitcoin price, just like gold.

I believe having a lower market cap, is more prone to price manipulation, whales can able make some move to price themselves.

Nah. Even how Binance is very careful to check before listing, there are still a lot of altcoins that are listed on their exchange that may turn into SCAM or some of them are already scam but people still don't notice it.
Since at the first, how can we define a "SCAM COIN" at first? Can we tell Ripple(XRP) is a scam coin? Bitcoin Cash? It's kinda difficult to tell if there is no specification.

The total of 90.5k BTC that MicroStrategy owns at around $24,000 price average now. They are still up around 50% if you compute it now, but this is not the deal, not the short term. Michael Saylor indeed looking for the long term, that's why they bought another around $1billion worth of Bitcoins recently at above $50,000 price.

+1 with adaseb, who else don't want Bitcoin with limited supply compare to those dollars with you don't the supply