Comments and discussion on Valentin's 4th "Then and Now" - Area

[EdS2]

I rather hope that the next Valentin challenge will come with a cross-linked comments-and-discussion thread like this - the two of us can coordinate.

And my hope is very much that we have both good things: a thread for the business of the challenge, and a thread for related business. And then we don't have to worry so much about what we post, only about where we post it.

It remains impossible, I'm sure, to please everyone by choosing a precise time interval between the posting of the challenge and the encouraging of sharing of solutions. Any time interval will be too short for some and too long for others. But still we must choose something, zero or more days, and indeed it's Valentin who gets to choose.

What I would recommend is to try to accommodate people who don't visit too often, and particularly I'd recommend posting the challenge in one week, allowing a weekend to pass, and allowing the free discussion the following week. This could be as short an interval as Friday evening through to Monday morning, in some timezone.

I think it would help if the posted challenge includes the date and time for the thread to open for submissions and contributions.