UPDATE

[SebastianJu]

Thank you all for the answer.

Reading a lot of posts of famous media or some blog the alert everytime on:

- BTC cause to much pollution and energy usage (more than actual FIAT, bank, system)

Well, it is way less than the fiat or banking system. But still, bitcoin has it's problems.

For example, the current hashpower is 100 times higher than needed. 1% of that hashpower would be enough to hold the bitcoin network secure. So there is no reason for the "fee market" the 1MB block fans propagate. Miners need to trim down their miners. It happened all the time. Nobody mines bitcoin with GPU or CPU anymore now. Those miners were switched off. So when the reward is way way lower then bitcoin will still survive even with many miners switching off their miners.

And this hugely overloaded system has another problem. A study, some months ago, showed that ONE bitcoin transaction needs so much power like 1.75 average US-households use in electricity per day. ONE transaction. If the transactions has more than one input and 2 outputs then this power consumption grows even.

So at the moment bitcoin surely is not environmental friendly because the reward for miners is too high.

[AdopterOfCoin]

Thank you all for the answer.

Reading a lot of posts of famous media or some blog the alert everytime on:

- BTC cause to much pollution and energy usage (more than actual FIAT, bank, system)

Well, it is way less than the fiat or banking system. But still, bitcoin has it's problems.

For example, the current hashpower is 100 times higher than needed. 1% of that hashpower would be enough to hold the bitcoin network secure. So there is no reason for the "fee market" the 1MB block fans propagate. Miners need to trim down their miners. It happened all the time. Nobody mines bitcoin with GPU or CPU anymore now. Those miners were switched off. So when the reward is way way lower then bitcoin will still survive even with many miners switching off their miners.

And this hugely overloaded system has another problem. A study, some months ago, showed that ONE bitcoin transaction needs so much power like 1.75 average US-households use in electricity per day. ONE transaction. If the transactions has more than one input and 2 outputs then this power consumption grows even.

So at the moment bitcoin surely is not environmental friendly because the reward for miners is too high.

Next year, we will have halving. So it will be more environmental friendly.

Wait a moment, if the bitcoin price rise by 4 times, it will be even less environmental friendly.

[Blue_Tiger73]

The max number of bitcoin is 21,000,000, so the amount of transactions will pretty much slow down after it reaches that point. The computing power will also get better in the future, so the blocks will be processed even faster. And the storage, bitcoin is real money, real money is kept in a bank. What happens when a bank runs out of storage, they make more storage, and thats what bitcoin will do.

[ranochigo]

The max number of bitcoin is 21,000,000, so the amount of transactions will pretty much slow down after it reaches that point. The computing power will also get better in the future, so the blocks will be processed even faster. And the storage, bitcoin is real money, real money is kept in a bank. What happens when a bank runs out of storage, they make more storage, and thats what bitcoin will do.

Uh.. You have understood Bitcoin incorrectly. The reward would actually be quite small after the next few halvings, not when it completely stops. Transaction can still go on depending on the adoption rates. Even with huge portion of the coins getting lost, we can still divide Bitcoin beyond satoshis and it wouldn't be a problem.
No matter how fast the computing power can be, the blocks will never be faster in extended period of times. It would be faster between difficulty change if the processing power increases between it. For blocks to be faster, a hard fork is required.

[DannyHamilton]

The max number of bitcoin is 21,000,000

No.  This isn't true. The maximum number will never be more than 21,000,000 (which is an easy number to say and remember so it is often used with the "never more than" description), but it will never be 21,000,000 either.  The maximum number is less than 20999864.7679.

so the amount of transactions will pretty much slow down after it reaches that point.

The amount of transactions might speed up, or it might slow down.  There really isn't any way to know.

The computing power will also get better in the future, so the blocks will be processed even faster.

Nope.  Faster computing power does NOT result in faster blocks.  The average time between blocks will remain at 10 minutes regardless of how fast computing power gets.

And the storage, bitcoin is real money, real money is kept in a bank.

Not always. I have U.S. dollars in my pocket.  I also have some in my dresser drawer.  I have a few in my car. My wife has some in her purse.  None of these are banks.

What happens when a bank runs out of storage, they make more storage, and thats what bitcoin will do.

I'm not sure that your analogy makes sense, but I'm impressed by your ability to get so many things wrong in a single post.

[Lucas*]

The max number of bitcoin is 21,000,000

No.  This isn't true. The maximum number will never be more than 21,000,000 (which is an easy number to say and remember so it is often used with the "never more than" description), but it will never be 21,000,000 either.  The maximum number is less than 20999864.7679.

if we count the coins lost forever the real maximum number is way less than this..

[Amph]

The max number of bitcoin is 21,000,000

No.  This isn't true. The maximum number will never be more than 21,000,000 (which is an easy number to say and remember so it is often used with the "never more than" description), but it will never be 21,000,000 either.  The maximum number is less than 20999864.7679.

if we count the coins lost forever the real maximum number is way less than this..

well that is the maximum available number no matter, what unless one day consensus decide to increase it(i hope never)

for the coins that are lost, there can always be chances in the future to retrieve them, they are not 100%, if new tech are discovered...

[ranochigo]

The max number of bitcoin is 21,000,000

No.  This isn't true. The maximum number will never be more than 21,000,000 (which is an easy number to say and remember so it is often used with the "never more than" description), but it will never be 21,000,000 either.  The maximum number is less than 20999864.7679.

if we count the coins lost forever the real maximum number is way less than this..

well that is the maximum available number no matter, what unless one day consensus decide to increase it(i hope never)

for the coins that are lost, there can always be chances in the future to retrieve them, they are not 100%, if new tech are discovered...

A hard fork can be done to recover all the lost coins but there isn't a way to prove that they are truly lost. It would also somehow equate to stealing those coins. Adding a decimal place if needed would be much better but I feel that there isn't a need anytime soon.