Over the last couple years as I have been more involved in things like business plans the abbreviation TRL made an increasingly frequent appearance. It stands for 'Technology Readiness Level' and is a scale devised by NASA and the US Department of Defence to rank innovations; it ranges from 1 - 'basic principle observed and reported' - through to 9 - 'flight tested'. This post also introduces a corresponding 'investment readiness level' from Steve Bank that ranges from 1 - 'first-pass canvas' to 9 - 'validated metrics that matter'. Anyhow, in my world these days, you can't escape the concept of TRL, for better or for worse.
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