Question about lightning network. Let's assume segwit gets activated and the first LN implemantation runs smoothly: could exchanges wire directly to your LN wallet? Would there be any downside for the user?

I am trying to figure out, how much pressure you can take off the main blockchain with LN. Best case scenario: you could load somehow a big chunk of BTC to your LN wallet and then basically only rarely have to do transactions on the blockchain via /r/Bitcoin http://bit.ly/2shnNyC