I find the article weak overall. While it does have a couple good points, it betrays the same lack of imagination that it decries when it mentions that resource

I find the article weak overall. While it does have a couple good points, it betrays the same lack of imagination that it decries when it mentions that resources used now might not be the same in the future. Maybe also technology availabe now will be also different in the future. I can't say for sure whether we will or not mine the astereoid belt, but sure as hell neither can the author.