I'm thinking again about your question. I think you're talking about the time span a submission is visible on the frontpage, right? This can be controlled by th

I'm thinking again about your question. I think you're talking about the time span a submission is visible on the frontpage, right? This can be controlled by the age exponent in the formula and (in our proposal) by the upvote-threshold between new-page and front-page. If only a few very high quality posts make it to the frontpage (because of an upvote threshold), they will have more exposure.