An important reason for Bitcoin's popularity is that it has withstood the test of time. No digital currency has experienced so many ups and downs like it. It has been discussed many times around the world, and  tenacity of its vitality also proves its value from the side.
Moreover, Bitcoin is the most widely-consensus digital cryptocurrency, and it has a strong international circulation. The total amount of Bitcoin is constant at 21 million, and it is halved about every four years. It is scarce. In addition, Bitcoin is a peer-to-peer transaction transmission, free from the intervention of various institutions, and can circulate around the world. You can send your Bitcoin to any corner of the world. Coupled with the fact that Bitcoin has higher returns than gold. Digital currency or encrypted assets represented by Bitcoin is the general direction of the development of the entire financial industry.
The great investor's enthusiasm over Bitcoin is based on its overall progress during last decade, it is proven only crypto asset that surpasses the expectation of investors and breaks the previous record highs. And bitcoin has been presented to the world to comply with the general trend of economic globalization.

https://medium.com/cryptocurrencies-ups-and-down/bitcoin-is-still-the-favorite-choice-598d15fde96f

https://thegarret.org.uk/this-bitcoin-technology-will-destroy-your-favorite-altcoin-drivechain/

Bitcoin side chains could be developed that implement any features and characteristics of any altcoin on a side chain using BTC as collateral.
What are your thoughts on Bitcoin side chains? Is there really potential for Bitcoin to metamorphosis into every altcoin? Or are there some key limitations that could stop this from happening?

Supporters believe that investors believe that Bitcoin is an effective tool for hedging inflation in the context of global central bank releases. Opponents believe that investors are chasing Bitcoin too fiercely, and a speculative bubble may have formed. Do you think Bitcoin crash is an opportunity to enter the market?

This is the worst dip we’ve seen yet this cycle, but we’ve seen lots worse in previous cycles and bitcoin still came back to rally when the time came. Be patient. one bad thing happens and everyone seems to forget the long game. This is exactly how they want you to react so they can have your bitcoin.

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아니면 둘 다 소량이라도 사는게 좋을까요..?

It's almost 2am and this is the first time it's happened in my house it started about an hour ago and stops for 2-3 mins and comes back louder.. what the heck is going on?

For the past week or two i've been feeling like I'm dreaming. It's hard to notice that everything going on is real, and I literally have to question reality sometimes. Along with everything feeling like a dream, just like a dream I can't remember some recent things very well. What is this? If its something that I should be worried about or see someone about, who should I see?