I too spend time learning <i>breadth</i> of topics, including startups (though it is orthogonal to my work). However, I retain very little after a while. I stumbled in to Edgar Dale&#x27;s &quot;Cone of Learning&quot; or &quot;Pyramid of Learning&quot; <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Edgar_Dale" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Edgar_Dale</a><p>Based on that, I plan to <i>teach</i> whatever I learn (God save the listener&#x2F;viewer!) by compiling short videos and unleashing it on the common man, via youtube.<p>Also, note the criticism of above research&#x2F;ideas at this blog: <a href="http:&#x2F;&#x2F;www.danielwillingham.com&#x2F;daniel-willingham-science-and-education-blog&#x2F;cone-of-learning-or-cone-of-shame" rel="nofollow">http:&#x2F;&#x2F;www.danielwillingham.com&#x2F;daniel-willingham-science-an...</a><p>One more thing that kept me motivated during learning is to build tiny projects along the way (in case of technical learning). The take away from this is regular positive reward can be a good motivator.