bought it for 945 eur and I calculated the electricity costs should be around 400$ per month (0,14$ kWh)

The model is Antminer S19j Pro 104TH/s, 3.2kW, bought from ebay from a guy in Croatia. I should've bought the avalon Q indeed, once i complete my setup i might get it
What do you mean by bitmain miners are failing a lot? What is meant by failing

ajaxtempest!! nice find on the new miner brother, thanks so much, I might order it indeed. Btw the s19j pro arrived and I tried it both on pool with other people and on solo mining * just for about an hour *.
Need to wait to install the solar so my mining has some financial reason for me, the sound from the s19j pro is so loud tho, I didn't expect that much sound, now I'm thinking if maybe I should build a small area outside of the house where I should put it or alternative ways to limit the sound.. maybe I'll put in in the garage in the first place but we'll see

What does 'hosting option available' mean exactly?

Hey, I'm looking to order something right now so I don't have to wait when I get back home, I decided to give it a try with a solar powered setup. I was going for S19k Pro 120TH/s, but I can't find any good deals right now in Europe, only in China and I'm not sure how the customs will handle it. I found this one from Croatia which will be delivered easier and cheaper, any thoughts on it? S19j Pro 104TH . It is used but is just around 1000 eur. The plan is to upgrade to 2 or 3 miners if everything works fine, but not sure what will be the other ones yet.

And just like that Bitcoin university(Matthew Kratter) published a new video regarding the quantum situation.
It's the same old don't worry, the devs will handle it, which I agree with to be fair.

If the quantum computer able to hack every known algorithm(so far) was to become a reality,
I think it would first be in the hand of people with power (presidents, governments, military, other secret services) because it will cost a lot to make(money and knowledge) and not everyone can afford it.
I just don't see how someone from the lets say middle class can invent it in their garage but who knows. I don't know what people with power would do first with quantum computers but I doubt it that it will be bitcoin hacking if we are still on fiat standard, but still some specific wallets could be targeted just to centralize bitcoin and end the fiat's biggest threat. Maybe another solution would be to transform all of the services(the power) to be public and everyone to be able to check and see how and what is going on.. but this might be just a dream since it will involve world peace, no wars, no corruption.

Anyway I suspect private quantum computers are a bit more ahead than what is known publicly ( look at every other thing and it's the same AI, weapons, markets etc.. insiders)

I see, but I still think there should be at least a thread or somewhere where developers should discuss openly ways to handle this.
2030 is not that far ahead. I'm a developer myself and I think a good feature could take 1+ year from idea to production.

I wonder if there will be a need to migrate each address separately or there will be just a new type of addresses and users will have to manually move their satoshis

Hey all!

For the past year, there have been some news coming about quantum computing advancements, with the latest one being the Google's new chip Majorana 1, which uses 'state of matter'.

I'm no expert, but whenever I see an advancement in quantum stuff, I often read people saying that everything else will be hacked a lot easier than bitcoin and I understand why.
However I don't see why not to start and think about how to implement potential quantum resistant algorithms to be used within the BTC blockchain. I know some altcoins already have implemented some sort of quantum resistant algorithms.

The only posts I saw about quantum stuff in the forum were from ~2012. If there are other topics relating this, please share them and I will close this in their favor

I'm away from home for a couple more months. I did the math and I really have to go for something like - Bitmain Antminer S21 XP (270Th) ~ 6000$ in order to be in profit since electricity is not very cheap where I live. I am also thinking about partly solar powered solution where I will not depend on electricity for profit, but should start with a lower Th miner. I will be spinning a full-node first thing when I get back and then see how it goes

nice to hear recommendation for s19k pro 120T @ 2760w as it is one of the miners that I liked on ebay.

by the way, are you hesitant to order from china or they should be fine? because the best offers that I see for 'brand new' miners are from hongkong/shenzen

thanks for your fast reply! I noticed it right away but was wondering about your questions haha
ebay indeed has some options and i've already liked some miners to try. I think 1-3KW would be a good start for me, just to play with it and see how it goes.
thinking about using it in a house but not sure if I want to use it for heating yet

Hey all!
This is my first post here!
Can you share some trusted places to buy a bitcoin miner from? Over the past years I've explored Avalon miners, Bitmain miners and Futurebit miners.
Unfortunately, I haven't been able to get my hands on a budget miner. Whenever I decided to dedicate some time and look for miners, I always ended up finding the best miners are already out of stock.
I don't want to spend over 5000$ for my first miner. Also shipping to Europe would be great.
Whenever I ask for recommendations to buy miners from, I don't seem to get any valid answers. Also I'm hesitant to use second place markets, because my expertise of managing nodes/validators is not yet very mature
so I don't want to get scammed. I've seen reviews from the past for bitmain and aavalon that they use it before they send it to you which also let me down and I didn't order from there ( one time there was option to pre-order and there were some miners in stock). Any recommendations are welcome, I can't even imagine how I can build a miner myself, since I can't find valid tutorials.

Thanks in advance