Discuss stale period

[MerlinEgalite]

As a reference:

• Slack discussion
• CL call recap

On my side I'd be in favor of implementing a stale period check of 36 hours or 48 hours. This is a safe margin I think. We can safely say that after this period the price feed is stale

[MathisGD]

I don't think that the check should be implemented, because:

• lenders can do it on their own and leave the market when they think that a price is stale.
• This is supposed to be enforced by Chainlink, and if we don't trust Chainlink we should add other checks
• I think that it is very low probability that Chainlink on purpose shuts down a feed without making it revert

[Rubilmax]

it is very low probability that Chainlink on purpose shuts down a feed without making it revert

is this claim backed by a discussion with their team? (in any case, I don't think we should consider whether they are going to revert or silently make it stale)

[MerlinEgalite]

We should at least add a comment IMO