# Ark Whiteboard Masterclass with Burak & Robin

{% embed url="<https://www.youtube.com/watch?v=EocWax43QgQ>" %}

### Chapters:

00:00:00 Intro&#x20;

00:01:20 Burak's Issues with Lightning&#x20;

00:05:29 Ark is VERY Different&#x20;

00:09:27 Liquidity limitations of Lighting visualized&#x20;

00:18:10 What Ark can bring to Lightning&#x20;

00:22:10 High-level sketch of how Ark works&#x20;

00:33:49 How Ark transactions are made Atomic&#x20;

00:53:39 Interactive Protocol, step by step&#x20;

00:57:17 Permissioned Peg-in, Permissionless Peg-out&#x20;

01:02:39 Are Bank-like things on Bitcoin a good thing?&#x20;

01:04:33 Federation-owned ASPs&#x20;

01:09:09 Downside #1 - Liveness requirement&#x20;

01:17:23 Downside #2 - On-chain footprint&#x20;

01:22:39 Coinjoin privacy&#x20;

01:46:28 Pro / Con summary&#x20;

01:47:56 On-chain spend out logistics&#x20;

01:50:16 How should we use Ark?&#x20;

01:54:26 Liveness requirement revisited&#x20;

02:02:32 Implementation roadmap