Hi guys,
I would like to ask one question, cause I am a little bit confused. The question is about payment channels and their direction. Is LN channel bidirectional? I read on the Internet tha channel shoul be but I am not pretty sure, if It has been developing or if it has already worked.

Example:

1) Bob opens a 1BTC channel with Alice and sends her 0.5BTC. If Alice wants to send Bob 0.5BTC may she uses the same channel or it is just onedirection channel and she has to open another channel which is in direction Alice->Bob and use this for paying Bob.

2) May Bob and Alice open just 1 channel where both fund 1 BTC so the total balance of the channel will be 2 BTC or the only possible way is that Bob opens channel with Alice where he funds 1 BTC so the total balance will be 1BTC and Alice has to opend channel with Bob, where she fund 1 BTC?

Thank you veru much for response

Hi everyone,

What is the current throught put of Ethereum, I found only a few articles which mention  15tps. is that correct ?

And my second question is. What Ethereum has already done for improving scalability ? I know that Sharding was implemented, is there anything else ?
I read something about Plasma and Raiden have it been implemented yet ? or those two are just proposals ?

Thank you very much for your help.

Hi guys,
I am just curious, how it is possible, that LN is implemented without softfork ( I know that thanks to Segwith LN is implemented) but what is the proces of implementation ? how does it worked ? Someone (Bitcoin developeers??)  just did an upgrade for wallet and only one point which has to be done is to upgrade wallet (or the provider has to upgrade wallet) and than you are free to use LN. Or what is the process of implementation ? Thank you very much.

I know that LN is considered as a Off-chain , what about sidechain Pegged may it be also considered Off-chain ? I find many resources on the internet and the opinions do not match. Someone say that it is a off-chain solution but someone consider it as a third possibility : 1) On-chain 2) Off-chain 3) Sidechain

Hello guys, has it ever happened that some pool had exceeded 51% of Bitcoin hash-rate? I tried to find some information on the Internet, but there are many articles which are not in the contrast so I am not able to find out which of them are correct and which are just hoaxes. Thank you

Thanks for your comment. I would describe Bitcoin scalability problem as (correct me if I am wrong) - inability to process a large number of transactions (like for example VISA). which result in impossibility to implemented Bitcoin as normal daily payment method for large amouth of people.

Thanks everyone for your advices! appreciate that

Hello guys,

I have just one  question. I am collecting some information about Bitcoin Scalability for my school work. Can please someboy write me all methods which are considered as Bitcoin scalability solutions ? when I try to google it everything what I found is:
- Hard Fork - change block size
- Lightning Network
- Sharding

Is there any other methods which might solve the bitcoin scalability problem ?

Thank you.