# Arbitrum 1010 agenda outline

### Quick dive into the key objects for beacon chain

### Terence 30-45 mins
- Slot
- Block
- State
- State transition function
- Background on consensus objects
- State object
- Block object
- SSZ bascis
- Validator
- Shuffling
- Committees
- Honest assumptions

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### Quick dive into the key objects for FFG and LMD GHOST

### Potuz 30-45mins
- What is FFG
- What is LMD GHOST
- What is head
- How to find head
- Reorgs? what are those? how do they happen? are they scary?
- Latest head vs safe head vs finalized head
- Voting incentives (source, target, head)
- Finality patterns
- How do we justify
- How do we finalize
- Finality in PoW vs PoS, what's the diff?
- FFG slashing conditions
- FFG edge cases (feel free to use your old slides)
- Inactivity leak