Update design.rst

[Cryptinterested]

I changed block time to 30 seconds since Granada is now live

[utdemir]

Thanks.

This makes me wonder if any of our default constants should also change, specifically: max_bid_interval_in_blocks.

Previously that max_bid_interval_in_blocks and max_bid_interval_in_seconds were aligned (eg. they would take approximately the same time). To keep the same ratio, it might make sense to double the max_bid_interval_in_blocks. What do you think @gkaracha?

[gkaracha]

This makes me wonder if any of our default constants should also change, specifically: max_bid_interval_in_blocks.

Previously that max_bid_interval_in_blocks and max_bid_interval_in_seconds were aligned (eg. they would take approximately the same time). To keep the same ratio, it might make sense to double the max_bid_interval_in_blocks. What do you think @gkaracha?

Ah, yes, great point @utdemir 👌 I certainly agree on keeping the ratio, but I wonder if to achieve that we should half max_bid_interval_in_seconds or double max_bid_interval_in_blocks. Either option would make sense to me, but the first is more fast-paced than the second (time-wise). This also makes me think about the descending auction price which is also a function of time. If everything happens faster regarding the bids, we might want to make the minimum bid descend a little faster as well, otherwise the first bid might take many blocks to appear.