Ironically, training wheels are actually a bad way to teach a kid how to ride a bike. They teach kids bad habits (like turning the handlebars to steer rather than leaning).

Balance bikes are a better first step and are actually really fun compared to training wheels.

They are starting a new discussion about the ethics of drafting because you mentioned "universal male conscription".

In that discussion they are saying that it's unethical to have a child in a country that will draft him unless you prepare him (via learning another language, etc.) to leave as soon as he is 18.

(Just explaining, not putting forth any take on the matter).

It can be true that stacks of paper are better than a single screen in some ways and worse in others. Other people like to be able to spread out multiple sheets of paper in front of them, even if you do not. You are correct that digital search is a huge plus of having a digital interface.

If we’re talking 3-5 pieces of one sided paper for say homework you can spread them out nicely, but scale that to multiple stacks of loose paper and it invariably becomes a mess.

Thus, in practice almost everyone is using multiple screens at work when they can even if printing stuff is trivial.

Why was the title renamed on hacker news from “Fifty Things you can do with a Software Defined Radio” to Things you can do with a Software Defined Radio”?

Just curious about if the original title was rule breaking or something.

>“Your 100m sprint time isn't going to tell us much about your 400m time”

…

Statistically it should actually tell us a lot about your 400m sprint time.

Fair, the analogy has flaws. But did this make my point any less clear?

>It implies a defensive structure. I.e the advantage I get out of low status.

OP is using the term moat in the standard way, actually. Something you have to cross to get to the reward (skill at a particular thing), that most people won't pay the cost for (being temporarily bad at something and low status). It stops most people from even trying to compete.

Quote from the article:

"It’s called a moat because it’s an effective bar to getting where you’re trying to go, and operates much like a moat in the business sense — as a barrier to entry that keeps people on the inside (who are already good at something) safe from competition from the horde of people on the outside (who could be)."