Hi everybody! 

Today I signed up in the forum, and as my first question I'd like to ask something that's been bugging me for a certain amount of time.

First of all, I'd like to clarify, I bought my first BTC quantity around August last year at a price of ~$3000, but it wasn't until the massive bull run was over that I began to read more about how Bitcoin works; because of this I'm not very knowledgeable about cryptocurrencies but as a college student CompE I'm more than willing to spend massive amounts of time learning about cryptocurrencies. So please, if any of the statements/assumptions that I make are wrong please correct me.

Now, I constantly hear stuff like "Bitcoin will reach $100K" or "Bitcoin will reach $1Million", and I'm not going to be the one to say that it is impossible, but I am certainly skeptic about it being able to reach let's say $1Million until somebody clears this issue for me.

Now, here we have the first Bitcoin transaction for a certain good (Lazlo's Bitcoin pizzas) https://www.blockchain.com/btc/tx/a1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d .The satoshi/B fee here is 4,191.363.

Now, here we have a transaction that a friend of mine made a couple of days ago.
https://www.blockchain.com/btc/tx/f847d8b7014906a355eb4fe9996a01746341c65ebe885382a437a2771b4f0e04 .The satoshi/B fee here is 7.618.

In a hypothetical future in which Bitcoin is $1million, if I want to send $5 to a friend in Bitcoin, I would be sending 500 satoshi worth of BTC to my friend, but I would be paying some miner fees, which being optimistic, the smallest on-chain value I can have I guess is 1 satoshi which would be worth $0.01.

So now we would be having to use layer 2 solutions like Lightning which allow you to have sub-satoshi fees, but opening channels also costs BTC which on-chain would be at least 1 cent.

So my questions are:
1. Can a fee have a satoshi/B value below 1?
2. Can a fee have a satoshi/B value equal to 0?
3. What is the smallest size (if there is any) in bytes that a Bitcoin transaction can be?
4. Since block rewards decrease over time, is it possible to sustain a system in which miners and low on-chain fees (by low I mean less than $0.01) can coexist with a Bitcoin valued at $1 million?

If you took time to read all of this, thank you. I hope everyone has a great summer (the little of it that is left) and thank you in anticipation for your answers!

Hi everybody!

Today I signed up in the forum, and as my first question I'd like to ask something that's been bugging me for a certain amount of time.

First of all, I'd like to clarify, I bought my first BTC quantity around August last year at a price of ~$3000, but it wasn't until the massive bull run was over that I began to read more about how Bitcoin works; because of this I'm not very knowledgeable about cryptocurrencies but as a college student CompE I'm more than willing to spend massive amounts of time learning about cryptocurrencies. So please, if any of the statements/assumptions that I make are wrong please correct me.

Now, I constantly hear stuff like "Bitcoin will reach $100K" or "Bitcoin will reach $1Million", and I'm not going to be the one to say that it is impossible, but I am certainly skeptic about it being able to reach let's say $1Million until somebody clears this issue for me.

Now, here we have the first Bitcoin transaction for a certain good (Lazlo's Bitcoin pizzas) https://www.blockchain.com/btc/tx/a1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d .The satoshi/B fee here is 4,191.363.

Now, here we have a transaction that a friend of mine made a couple of days ago.
https://www.blockchain.com/btc/tx/f847d8b7014906a355eb4fe9996a01746341c65ebe885382a437a2771b4f0e04 .The satoshi/B fee here is 7.618.

In a hypothetical future in which Bitcoin is $1million, if I want to send $5 to a friend in Bitcoin, I would be sending 500 satoshi worth of BTC to my friend, but I would be paying some miner fees, which being optimistic, the smallest on-chain value I can have I guess is 1 satoshi which would be worth $0.01.

So now we would be having to use layer 2 solutions like Lightning which allow you to have sub-satoshi fees, but opening channels also costs BTC which on-chain would be at least 1 cent.

So my questions are:
1. Can a fee have a satoshi/B value below 1?
2. Can a fee have a satoshi/B value equal to 0?
3. What is the smallest size (if there is any) in bytes that a Bitcoin transaction can be?
4. Since block rewards decrease over time, is it possible to sustain a system in which miners and low on-chain fees (by low I mean less than $0.01) can coexist with a Bitcoin valued at $1 million?

If you took time to read all of this, thank you. I hope everyone has a great summer (the little of it that is left) and thank you in anticipation for your answers!