The main chain will reach its capacity early next year.
People were saying stuff like that back in 2016, though, so it's unlikely. And I should know, I used to be one of those people.
Lots of us used to think scaling was this ticking time-bomb and that we had to take drastic action to avoid an imminent catastrophe. But, as it transpired, the threat was never really that great. So we know better now. Experience tells me we can take the cautious approach.
It's understandable that people want to see things happen quickly, but it's also crucial it's done properly. Personally, I'd rather it take a bit longer if it means there are fewer mistakes made along the way. There's no need for panic. All the other potential optimisations are being looked into as well, so remember that Lightning is only part of the equation.
Where can we find full details of lightening network.
You might need to be a little more specific.
If you want the whitepaper, it's here:
http://lightning.network/lightning-network-paper.pdfIf you meant some network statistics, then:
https://1ml.com/statisticsBut there is more than one company working on Lightning clients and each have their own implementation. The "Big 3" are C-Lightning, Eclair and Neutrino, but others exist as well, like the new one being discussed above.