https://piped.video/watch?v=YyzQsVzKylE
Lithium batteries scale power and capacity at the same time. Flow batteries can scale power and capacity independently.
The advantage of flow batteries is that they can have enormous capacities without the added cost of upgrading the power, making it ideal for grid scale storage.
Even if this new flow battery reaches the energy density of a lithium battery, and can output sufficient power, it would still need to reach price parity to be competitive.
Listen to the safety briefing. They wouldn't bother telling you if it wasn't important.
Keep your seatbelt on for the entire flight. The pilots can't always predict turbulence, and hitting the ceiling hurts.