Reviewing is important, and not just because your plans aren't working out. Our goals change, espcially as we move closer to them and learn more about them, and about ourselves. There's no point to continue working towards a goal you don't want any more, or that you'd be better off modifying. I like to call this rethinking, to recognise that goals are not set in concrete and that I'm free to change them if I want to.

Once I studied physics and distant galaxies. Now I fly satellites instead, and spend my time thinking and writing about trends in space and technology.

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