Does it mean that if I want to transact in an LN network, I can open just one payment channels with someone and then make any number of transactions with anyone who is potentially reachable in this network completely bypassing the blockchain? If so, that pretty proves that LN solves the issues that Bitcoin now has
This is basically what the LN portal
claimsIF that other person has multiple channels yes.. other wise there is no 'route'.
but remember to set up and close a channel IS requiring onchain transactions
That's basically what I wanted to hear
In fact, this is what I correctly assumed myself. So, to open (and close) a payment channel, I would need two otherwise regular transactions, and after that I can make any number of transactions between LN nodes which can be routed to me (and me to them). In other words, with just 2 LN transactions I can make literally thousands of near ping-time transactions which otherwise (without LN) would require me to pay insane amounts of fees and likely wait infinite amount of time to confirm, right?