It&#x27;s deeply gratifying to see Robert and George use DTrace to teach operating systems:  all three of us on the DTrace team had TA&#x27;d our operating systems course at school[1], and one of our unspoken goals with DTrace was to offer for educators a pedagogical tool that could potentially be used to revolutionize operating systems education.  It&#x27;s profoundly satisfying to see them realize this dream[2]:  good on them, and may it serve to educate a new generation of software engineers!<p>[1] <a href="http:&#x2F;&#x2F;dtrace.org&#x2F;blogs&#x2F;bmc&#x2F;2007&#x2F;05&#x2F;06&#x2F;the-inculcation-of-systems-thinking&#x2F;" rel="nofollow">http:&#x2F;&#x2F;dtrace.org&#x2F;blogs&#x2F;bmc&#x2F;2007&#x2F;05&#x2F;06&#x2F;the-inculcation-of-sy...</a><p>[2] <a href="http:&#x2F;&#x2F;bsdtalk.blogspot.com&#x2F;2015&#x2F;12&#x2F;bsdtalk260-teachbsdorg-with-robert-n-m.html" rel="nofollow">http:&#x2F;&#x2F;bsdtalk.blogspot.com&#x2F;2015&#x2F;12&#x2F;bsdtalk260-teachbsdorg-w...</a>