Could you try it today too?
I'm wondering if there were any issued with your PC clock or with the conversion of your local time to GMT by Electrum. 1610392963 (the locktime in the picture in OP) is January 11, 2021 7:22:43 PM GMT, your picture is showing 2:22:43 PM since there is 5 hour difference and if there were any issues there (such as your clock, timezone or bug in Electrum), only 1 hour waiting wouldn't be enough.

Filling your own block with transactions costs nothing because you are getting the fees of all those transactions in the coinbase transaction of the block they mine (it is like putting money from left pocket into the right one). Not to mention that such an attack could be a collaboration between more than one big miner where they both spam the network to inflate the fees.

Block size hasn't been 1MB for nearly 4 years now. The block weight has been 4 MB which has translated into average size of about 1.5 MB.
This "cap" is not there to reduce spam, it is there to prevent spam attacks that would cost nothing to perform.
We also don't want to just bump the raw size, we aim to increase the capacity without doing that. For example Schnorr signatures already get rid of some of the useless bytes that for years we've put into each signature. There is also aggregate signature that can reduce the size of transactions with more than one key.

That's because they are not used. It is like saying I can speed in this street that nobody else is in but I have to be stuck in traffic in the other street that is the exact copy of this one but it is used by a lot of cars.

Tether is neither quick nor safe. It is a centralized altcoin that is extremely risky to use because it could be shut down at any moment very easily.
If you are happy with centralized tokens pegged to fiat then you can use PayPal. It gives you a token that is also called USD which is pegged with dollar and is fully centralized, fast and as safe as it gets. But the difference is that PayPal is a legitimate company that works within United States and under US law while each PayPal USD token is legitimately backed by USD 1:1 whereas Bitfinex is not.

You are changing the context and yes in the context of exchanging bitcoin with something else it makes sense to talk about its value against that thing whether it is fiat or an object like a USB.
But in the purely bitcoin context, 1 BTC = 1 BTC. For example when price was $3,000 you were paying minimum of 1 s/vb and when price went up 10 times and reached $30,000 you are still paying minimum of 1 s/vb because 1 BTC = 1 BTC. And if you had 1 BTC that was worth $1 and wanted to mix it you still use 1 BTC, and if you had the same 1 BTC when it's worth $40k you still mix 1 BTC.

It is pure FUD when they try to convince you that bitcoin relies on Tether to survive or go up in price! USDT is just another centralized shitcoin that has offered some utility to the cryptocurrency traders (mostly altcoin focused) that needed a way to both transfer funds between exchanges and an escape tool when bitcoin price (and consequently altcoin prices) drop. Which is why the most amount of Tether is always printed during bitcoin bear markets. So it has stayed alive this long.

When Tether is shut down some day in the future (it is not even a matter of "if" with centralized altcoins, it is a matter of "when") it will definitely cause a lot of panic in the cryptocurrency market as a whole and will create a lot of panic sells that crashes bitcoin price (and consequently altcoin prices). But in the long run nothing will change about bitcoin since as I said in the beginning bitcoin doesn't care about centralized altcoins and what they do.

Just because a string starts with "0x" doesn't mean it is a shitcoin token. 0x is the prefix used to indicate the encoding of the numbers that follow is hexadecimal. Similarly 0b indicates binary. History.

In this case the hexadecimal values represses a public key (the first one which is 33 bytes and starts with 03) and the private key (the second one which is 32 bytes) that generated that public key.

It is not.
Bitcoin is a currency so if anything it is the uncorruptible decentralized dollar with a supply cap which makes it deflationary too.

There is nothing crazy about these prices for the limited supply global currency.

Because these "people" are day traders that are taking their profit after a 55.5% profit they made over the past 7 days starting from last week's correction when price had a very similar drop but that time from $34800 to $27700 (another 20% drop).

If you look at the percentage size of this fall you can see that it is 20% drop which could be categorized as a crash but a small one and it is normal for bitcoin to see such "mini crashes" during its bull run. Meanwhile only an idiot or a troll thinks that just because of such a move price could go below $30k let alone reach $3k

I keep suggesting everyone to look at the charts, I might as well repeat it here too. If you check the charts between 2015 to end of 2017 you can see that the trend is very similar (if not identical) to the chart between start of 2018 to end of 2021 with early 2021 (these days) being very similar to start of 2017.
A good example is the fall from $2980 to $2120 back in June 2017 which is 28% drop right after price went about 100% higher than the previous ATH ($1200 to $2980 -> $20000 to $42000).
You see the similarities yet?

The bigger problem is the derivation path otherwise with 1 missing word the number of mnemonics to check is going to be around 130 which can quickly be generated in less than a second. But if you don't know your derivation path then you have nearly unlimited number of keys that can be generated (eg. m/0, m/0', m/0/0, m/0'/0, m/0'/0', m/44'/1'/0, ...).
The other problem is about not knowing how many addresses were used from that wallet, which means even if you check the first 10 keys versus a big database of addresses that currently have a balance you may miss the correct combination if 11 keys were used and the first 10 were empty (eg. 11th one has balance with the first 10 used once and emptied later).

1. Install a virtual machine or a sandbox to run the bcash wallet (since it may be malicious)
2. Download and install bcash wallet called electroncash https://electroncash.org/
3. Open your Electrum wallet on your main machine
4.A. If you remember which address you used to receive bcash then go to your Addresses tab (if it is not visible, enable it from your menu View > Show addresses) then right click on that address only and select private key. You may need to enter your password here. Then copy what you see and use it in step 6.
4.B. If you don't remember which address it was then from menu select Wallet > Seed to see your seed words. Copy those and use them in step 6.
5. You must empty this bitcoin wallet before you move to next step. If you have any bitcoins in this wallet, create a new bitcoin wallet in Electrum by going to File > New/restore and sending all your coins to this new wallet.
6. Go to your bcash wallet and import what you acquired in step 4 into it. Do that by going to File > New/restore (if you went 4.A you have to choose "Import bitcoin address or private key", for 4.B you have to choose "Standard wallet" then "I already have a seed")
7. Let the bcash wallet sync and you should see your balance here.

Making the block size a variable is already centralizing it since the decision falls to miners and how they can manipulate it to their own benefit and they can easily do it with zero cost using a simple spam attack. They definitely spammed bitcoin in 2017 and the big pools were also rejecting any low fees to prevent the fees from going down. F2Pool is an example that comes to mind.

When the business is getting paid in bitcoin, pays in bitcoin, and works only with bitcoin and its revenue is not dependent on bitcoin price rise/fall, it makes no sense to measure things in fiat terms.

I've made this argument elsewhere about gambling sites but it also works with mixers and any other business that is always working purely with bitcoin, maybe more so for mixers since their customer count increases unlike gambling sites. Kinda like this forum's donator status still costing 10BTC.

With that said, I wouldn't be surprised if the rates were lowered at some point since we are still living in a fiat world where 1BTC is not 1BTC but is X$.

Yes but that's a very hypothetical question that is far from reality; not to mention that it can happen to anything else in the world. Lets say you wanted to buy a car and nobody including the manufacturer were selling it and only responded with "name your price".

Realistically supply (people willing to sell) and demand (people willing to buy) always reaches an equilibrium even if the balance is disturbed shortly. For example right now there are less supply (less people willing to sell at <$40k) while the demand is increasing so the price keeps going up. Eventually that reaches a point where the balance is reached and price stabilizes (it could be after a bubble burst and bear market but it will eventually happen like the $6k in 2020).

Bought wallets are manipulated files that already contain funded addresses, in fact they usually contain addresses with huge balances. That is how they get their victims, checking the address on a block explorer is not going to help.

Where did you get this file from, did you download it from the internet from someone else or did you actually create it yourself some time ago using a wallet application?

I doubt that institutional investors are going to be higher than regular investors at all with the way bitcoin is, decentralized and "be your own bank" nobody needs a middle man to invest in bitcoin. The actual market will always remain bigger than the institutional ones.
Even with institutional investors, the supply is still liquid through a different channel and nobody is "holding" bitcoin, they are just trading IOUs instead of bitcoin directly.

Price would remain the same as the last trade that took place before "everyone" decided to hold and never sell.

You should also consider both the withdrawal fee and the transaction fee you will end up paying later in your own wallet due to having many inputs to spend.

For example when you buy £10 at this current price you receive 0.00033460 bitcoin, usually exchanges charge high withdrawal fees so it would eat up into what you bought real fast. Additionally when you receive all these small inputs in your wallet and later wanted to spend a bigger amount like 0.01BTC then you will have to spend about 30 of them which means your transaction ends up being a little less than 30 times bigger than usual transactions with 1 input.
But if you increase it to a higher value (like the min withdrawal or higher like 0.005) then you will end up paying a lot less fee when trying to spend the inputs.

There was something wrong with your scripts, it is not possible to say for sure but usually this error is seen when there are items left on the stack when they shouldn't like when you provide 3 signatures for a 2of3 multi-sig. It can happen for other reasons too.

The interpreter returns it here and here

It depends on what else is leaked alongside the seed phrase. But generally speaking I wouldn't go for any extension that is lower than 160 bits of random entropy.

If private key was `k` and P was the result of `(k-1)*G` and if `Q` was the generator point `G` then the result of the final stage where you compute the public key or `k*G` is going to be `R` which is the result of addition of P and Q which is ((k-1)*G + G).

No because the "demand" that buys bitcoin is not always going to hold on to it for eternity. At some point people always end up selling their bitcoins one way or another (eg. selling directly to fiat or buying goods where the coins end up on an exchange eventually).