Don't assume that because things have been improving fast that they will keep improving at the same rate. In an optimisation problem you might think you're doin

Don't assume that because things have been improving fast that they will keep improving at the same rate. In an optimisation problem you might think you're doing a lot of progress but you might get to the end of the curve and realise you've been going down a local minima. It's very difficult to say how much more will these things improve!