9.If you lose your private key (Bitcoin wallet), you lose your Bitcoins.
You store your Bitcoins in a digital wallet. You can log in and check your balance. One thing, though, you have to be very careful when it comes to storing your password and key, which is what allows you to access your digital Bitcoin wallet. If you lose this access, youll lose access to your Bitcoin wallet and the amount you have inside.
You need to know how private key and password are different. Password only give you access to the wallet on your device. If the password is lost, you can still use private key to recover back your wallet on another device. Also know that seed phrase can be used also to recover back the wallet, so far the wallet support BIP39 seed phrase.
17. Bitcoin creates a lot of energy
Bitcoin mining is a big business and it requires vast amounts of computer processing power. Various estimates of just how much CO2 it uses equate to around one million transatlantic flights, or the equivalent of the energy output of the Republic of Ireland, New Zealand, Hungary or Peru.
Basically, if Bitcoin miners were a country, they would rank 61st in the world in terms of electricity consumption. It has been said that around 2.5 million people could be powered by Bitcoin mining and this is something we have to consider in the future.
While Bitcoin has undoubtedly disrupted the technology sector in recent years, its incredibly wasteful process needs to be improved.
You are not fully right, bitcoin consumes electricity but it is not a waste of energy, bitcoin even produce energy. So far the electricity used are legal and are paid for. It is even helping the electricity company to have a service to provide. About it adding to global warming, what about all other human activities that added to global warming. The significant reason that scientists have proven to cause global warming is deforestation not bitcoin mining. You do not talk about Amazon wide fire, or the wide fire in California and in many places of the world that are reducing the trees that makes carbondioxide to trap more heat into the earth. Also, governments and private sectors providing the electricity can move away from sources that produces greenhouse gas and move towards the ones that do not produce greenhouse gas.
14. Bitcoin transactions cost almost nothing
This has unfortunately changed and it's now a bit more expensive to use Bitcoin than some people could afford. This actually helps create Bitcoin a safe haven asset though, as it is quite costly to pay miner fees for everyday transactions - especially if you want them to be quickly confirmed.
I get your point, you are definitely right. But, I still like bitcoin for one thing, I can still make transactions with as low as 15 satoshi per vbyte or even lower. I still make use of low fee a lot. But, what now important is to use low fee but a fast clearance time. Normally, the lower the fee the higher the time before confirmation. Bitcoin transaction scalability need to be truly addressed. But, I noticed OP compared it with PayPal and other normal fiat transaction fee which have higher fee with constant price, but bitcoin fee is still lower to such. Only the clearance time is the issue as of now.