Elastic deadlines

[insti]

Continuing the discussion from Precommitting to data points:

@philip

I think (without having actually thought through) that this is an irrevocable bringing-forward of the deadline time, for today. Full amount at risk, full consequences if you fail to meet the self-imposed deadline. Reverts to the normal deadline from tomorrow.

Being able to temporarily set an earlier deadline and have it automatically revert would be a great feature.