It is built atop of bitcoin and provides as much safety as bitcoin itself, with one single exception: you cannot be offline for more than a week.

It's a fair tradeoff you have to take in order to instantly transfer trillions of dollars for cents worldwide.

Not even close

https://www.investopedia.com/tech/bitcoin-lightning-network-...

https://cryptowhale.medium.com/why-the-bitcoin-lightning-net...

https://www.forbes.com/sites/billybambrough/2020/07/09/bitco...