the homepage of Jeffrey Ellis

About Me

I’m an engineering manager living in Houston, Texas. I spent the first 20 years of my career in defense and intelligence, and for the past 10 years I’ve worked in human spaceflight at NASA’s Johnson Space Center.

In my spare time I occasionally develop software applications, and for many years I ran both a solo blog and a group blog on critical thinking and civility. This homepage is my place to collect up my more useful critical thinking materials, and to make some of my software apps available for download.

I can be contacted at

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