It's an investment. I'm not being funny, despite the fact that's the obvious snap response. I compare where I would be in my personal development with and without HN (and programming.reddit when it was good, and some subreddits that still are good, and my RSS feeds), and net-net it's a good time investment as long as you don't go absolutely nuts.
We don't have technology that can filter news based entirely on "what is 'good' for me" for any non-trivial definition of good. "Interesting to me" we can at least pretend to have filters for, but not "good for me". The only solution is to have something a bit far-ranging like HN or a subreddit and just deal with the misses. The alternative, never get any hits, is worse.
Heck, I'm not even 100% sure which articles are good for me after I've completely read them. Often I can only make the call in retrospect, weeks later.
Your mental image of a well-rounded person probably includes a large library of books and a stack of newspapers. There are reasons for this, even though the newspapers and large libraries ultimately suffer the exact same problems for the exact same reasons, albeit being a little less addictive since the internet is interactive.
Problem is that it's virtually impossible to tell what's a good investment until well after the fact. In money as well as in time.
When I was in college, I wasted a lot of time on Harry Potter fanfiction. I justified it to myself as an investment. I figured that I'd learn how to write better. I was involved as a tech admin on one of the sites, so I figured I could polish my technical skills. After all, where else could a college student actually write code that faced real-world traffic from real-world users? And if nothing else, the fandom was 99.9% female, so I figured I might even end up with a girlfriend.
After about three years of this, I figured "Who the fuck am I kidding?" and realized that it wasn't an investment at all. The hard part of writing is coming up with a believable plot and characters, and fanfiction didn't exercise that at all. I was going into financial software, using Java and custom databases, and so my PHP/MySQL webapp was completely irrelevant to my professional experience. Nobody really respected fanfiction anyway, so it's not like it was a resume boost. And I still didn't have a girlfriend.
Except that in the end, it was an investment. Three years after that, after a couple years in the financial software startup and then a failed startup of my own, I ended up getting back in touch with one of my friends from the fandom , who had since started a job at Google. They were hiring. Partially on the strength of her referral, and partially on the web skills that I'd built up since my time with that fansite, I ended up getting a job there.
Anyone remember Steve Jobs' commencement address, the one with the calligraphy story? It's sorta like that. We keep trying to structure our lives so that everything leads up to achieving our goals, but oftentimes, the goals themselves aren't apparent until we've reached them. It's only in retrospect that we can put things together and say "I meant to do that, yeah really, I did."
I tend to engage in a lot of (sometimes unhealthy) introspection, and the only conclusion that I can draw is that all the little (and big) decisions we make about what to do with our time can have a wide range of impact on our lives, from "little to nothing" all the way up to "life-changing." And it's usually so hard to tell ahead of time whether or not those decisions will end up giving us a net positive or negative.
And to make matters worse (or better, depending on how you think about it), the effects might not even be related to the "good thing" you expected. Like in your example, you ended up getting a referral at a new job, which was probably not what you expected. I think so far in my short life I've figured out that the biggest bang for your buck comes from forming relationships and connections with other people. All that, "it's not what you know, it's who you know," cliched stuff that we smile-and-nod at but rarely really think about, but is so ridiculously true.
We'll See...
There is a Taoist story of an old farmer who had worked his crops for many years. One day his horse ran away. Upon hearing the news, his neighbors came to visit.
"Such bad luck," they said sympathetically.
"We'll see," the farmer replied.
The next morning the horse returned, bringing with it three other wild horses.
"How wonderful," the neighbors exclaimed.
"We'll see," replied the old man.
The following day, his son tried to ride one of the untamed horses, was thrown, and broke his leg. The neighbors again came to offer their sympathy on his misfortune.
"We'll see," answered the farmer.
The day after, military officials came to the village to draft young men into the army. Seeing that the son's leg was broken, they passed him by. The neighbors congratulated the farmer on how well things had turned out.
Exactly. The oddest things can lead in the oddest places. I got my current awesome job because I dabbled in Erlang a bit, a language I would only have heard of via various Internet sites. That one hit alone is worth a lot of misses. (And I got that job because of other things I found on the Internet, and, well, actually all the way back to my very first real job.)
With no offense intended to pg, it's not really anybody's place to decide what is good or not good for me when I can't even tell until years later.
We don't have technology that can filter news based entirely on "what is 'good' for me" for any non-trivial definition of good. "Interesting to me" we can at least pretend to have filters for, but not "good for me". The only solution is to have something a bit far-ranging like HN or a subreddit and just deal with the misses. The alternative, never get any hits, is worse.
Heck, I'm not even 100% sure which articles are good for me after I've completely read them. Often I can only make the call in retrospect, weeks later.
Your mental image of a well-rounded person probably includes a large library of books and a stack of newspapers. There are reasons for this, even though the newspapers and large libraries ultimately suffer the exact same problems for the exact same reasons, albeit being a little less addictive since the internet is interactive.