[cle]

> This is possible because polygon uses a different concencus model (proof of stake) than ethereum (proof of work).

Does this mean Polygon will become obsolete when Ethereum moves to PoS?

[JaimeThompson]

>when Ethereum moves to PoS

The Sun having entered the red giant phase will take out Polygon long before Ethereum actually moves to PoS.

[tata71]

If you don't think it'll happen 2022, I have some Ethereum Classic to sell you.

[Tenoke]

No if it really becomes an L2 (currently it's just a sidechain). L2s are here to stay as the scaling solution unless Ethereum change their minds on what direction to go in again.