Not to quibble about details, but isn't all we see a presentation of a trend in the last two centuries? The fact that this trend is suggestive of future development doesn't quite make it an actual prediction of what's to come. For one, I suspect there won't be a continuing linear development (as shown so far) under the best of circumstances, as development will have to level off sometime. Besides, there is still ample opportunity for our collective plug to be pulled, and in that I do agree with your coloration.
