One More Stupid Question.

[rc4739]

 Can I Hash a Block Using My Destop Computer ?  when the diffuculty level   reaching   infinity
can we just reset the diffuculty level back to 1        just like the good old days    He He ....

[Fesatmas]

So far, blocks that have been filled in will be locked, because the system works according to the data on your date when you access it, but blocking will only make the desktop look new with new data. that's the risk.

[bitmover]

Can I Hash a Block Using My Destop Computer ?  when the diffuculty level   reaching   infinity
can we just reset the diffuculty level back to 1        just like the good old days    He He ....

Mining is a race.

Miners work together making pools, trying to solve proof of work algorithm before the others.
When a miner finds the solution (the hash), this solution is broadcasted to all nodes and a new block is created.

The difficult is automatically adjusted by the protocol every 2016 blocks (about2 weeks), so that the average block time is 10 minutes.
If miners go too fast, difficult goes up. If they go too slow, difficult goes down.

Reducing difficult would reduce blocktime, breaking the race completetly. THere would be thousand of miners finding blocks at the same time and broadcasting their solutions. There would be a lot of orphan blocks and involuntary forks.

The system works like this so it can work. the difficulty is high not because the network wants to harm small miners who use personal computers. The difficult is high because there are a lot of people mining, and professionally mining.

[Febo]

Can I Hash a Block Using My Destop Computer ? 

Monero can be mined with CPU. But if you solo mine it you are still playing a lotery since with normal luck you would mine for years to get a reward. But people are lucky ad get full blocks while mining with their computers.

[Twentyonepaylots]

It'll take years I guess if you are to mine on your own, with a small margin of luck to the off chance that you get a full block. And even then, you can never expect it since it doesn't happen that very often. And oh, you also have to to take into account the coin/token you're planning to mine, because a much valuable token will be harder to mine than a regular dirtcheap one. Mining isn't really profitable right now, especially if you are to use a single computer. You're better much off learning how to trade.

[Leviathan.007]

To give you a compete answer let's say If you talking about bitcoin blockchain and hashing a new block on it, this would take years for your desktop computer to do such thing and surly there are many other miners with stronger devices and will be compared to them. So, your desktop computer will have no luck here. Maybe years ago back in 2010 you could do such thing using your desktop computer but obviously not today. 

[Heisenberg_Hunter]

By attempting to mine a bitcoin block, you are doing more bad to your desktop rather than making any amount of money even by joining a mining pool i.e you will be spending more on the electricity and possibly a lifetime than the amount you have mined btc through your desktop computer. You can always reset the difficulty back to 1 by doing a shitcoin fork of bitcoin as you would be the only solo miner to mine the worthless bitcoin fork you have created out of thin air. For learning purposes, I tried to do a shitcoin fork thereby altering the genesis hash and creating my new chain and I generated 10s of thousands of bitcoin fork coins without spending much on the power. I would like to answer your question with an utmost average accurate time you can find a block with your desktop computer.

The current bitcoin network hashrate stands approximately at 150 Exahashes which is equivalent to 150,000,000,000,000 Megahashes
Our normal desktop computer which has a good GPU will have a hashrate of around 75-50 Megahashes per second

Hence, mining through a descent GPU will take around 3,000,000,000,000 seconds which is roughly equivalent to 95,129 years - I hope your descendants would be alive during that time and hashrate will remain the same but at the same time it would have been 95k years since bitcoin network has stopped emitting virgin btc through coinbase rewards.   In an approximate 100,000 years do we even live on Earth?

But owning and mining through an ASIC miner like Antminer S19 Pro which has an outstanding hashrate of 110TH/s will let us find a block in less than 15 days. So you have 2 ways to find a block :

1. Either buy a powerful ASIC miner like S19 Pro and join a mining pool and thereby rent your hash.
2. Create your own worthless coin and solo mine it with desktop.

[mocacinno]

So far, blocks that have been filled in will be locked, because the system works according to the data on your date when you access it, but blocking will only make the desktop look new with new data. that's the risk.

Wot  
Can you try to rephrase this, cause it makes no sense at all... Given your current rank, giving an answer like this is very confusing to newbies.
I'm not saying it's wrong... With some imagination i can make something from this post that does make some sense, but not in it's current form tough...

@OP: i agree with the other posters, but wanted to address the last part of your question "can we just reset the diffuculty level back to 1 ".

IF we'd do such a thing, it would have to be hard-coded and it would cause a fork... The chain following the new, hard-coded rule would have a diff of 1 at block height "x".
At height x+2016 (or sooner, depending at which point you'd force the diff to go to 1), the difficulty would jump to 4. Why? Because those 2016 blocks would be mined in mere seconds (even less). Remember: there are big company's out there running big ASIC farms, at a difficulty of 1, they'd solve blocks at a rate of hundreds per second. Why would it only jump to 4 then? because that's the maximum it can jump in one retarget (https://en.bitcoin.it/wiki/Target).

At height x+4032 (or sooner), the diff would jump to 16

At height x+6048 (or sooner) the diff would jump to 64

At height x+8064 (or sooner), the diff would jump to 256

All of this would happen in mere minutes (mostly because it would result in orphaned chains and to many new blocks for the nodes to parse and relay). At this point, your cpu miner would already have some troubles finding a block... And even if you did, the ASIC farms would produce thousands of blocks before you found a second one, so you'd be mining in the shortest chain and the chain paying you a coinbase reward would be stale...

So, in the end, resetting the diff without changing a lot of other parameters would cause a big mess, a lot of confusion, a chain split... But a CPU miner would not profit from this... The big ASIC farms would take a lot of extra money, but the home miner would get nothing....

By the way: don't sell yourself short... It's not a stupid question... You're obviously trying to learn, and that's a good thing!

[SquallLeonhart]

It's really not a scene for the small shrimp to go into. Even on ETH it is not easy to mine these days, you can calculate how much "profit" you could make with ETH mining right now but even in that you can't find the GPU's to mine it and the ones that are being sold in the under the counter market will be very expensive and that means we should not be considering it, paying 3x for something means that you are pushing the profits 3x further away as well and we are talking about eip 1559 dropping that anyway on top of that eth 2.0 will cut it completely so it's not going to be simple.

I know that there is nothing we could do to make this happen, but we are talking about bitcoin here, if ETH is that difficult, think about how much more difficult bitcoin would be, it's impossible to get in with smaller amounts. You gotta do like a million dollars at the start and keep investing more to grow.