I've grown up online, constantly consuming information and thus building up what to me seemed like a large body of useful knowledge on topics from comp. sci, data science, history, psychology, business, marketing and more.
The issue is that just constantly reading articles, books and consuming information has made me think I'm knowledgable, but in reality that knowledge is superficial, shallow, fleeting and hard to act on. Anything I think I know takes way longer to do because of unknown unknowns and a myriad of other factors you just don't get exposed to.
To use knowledge you need to internalize and create mental connections and the only way of doing so is by actually doing - not consuming. You may feel smart when you recall something you read months or years ago and share it in a relevant situation - but that's just a tiny fraction of what you've consumed. People don't learn by reading, they learn by doing.
The question: "why am I spending so much time consuming instead of acting" is an important question to ask oneself and for me the answer is that doing is boring. My brain has been hijacked by easy dopamine from games, forums (like HN and Reddit), YouTube and even Spotify. All of these easy, on-demand sources of digital dopamine have made all other activities harder to do without getting bored out of my mind. For instance I was learning Ansible 20 minute ago, but I got bored and started wasting time on HN instead.
Anyways, while I do enjoy FS, lesswrong, and a handful of other industry bloggers, blogs and aggregators I came to the realization that reading isn't furthering my goals. Only directed attention, effort and completing discrete projects will bring me to where I want to be.
More reading: Deep Work - Cal Newport. "Digital Detox" https://www.reddit.com/r/nosurf https://www.youtube.com/watch?v=OqlfWDyS1Io
Ps. It's easy to waste time reading about this too. My biggest realization has been that using any forms of digital feeds in the morning wrecks my attention span most of the day.