Can i tell me some thing about bitcoin and blockchain?
What is blocktime, blocksize and how effected of it to blockchain?
the topic that was repeatedly seen in this forum, what is bitcoin? What is blockchain? I advice to you it's better to used Google read and research. Try to read more, there are many threads you can read and I'm sure you will get a lot of information.
I agree with you, this question are repeatedly seen in forum.
If you want to know on what is bitcoin or a blockchain you should do a research, spend more time and effort.