I wouldn’t worry too much about this.
This loop runs on N users, 4 times, so it’s 4*N, which is linear time. :)
Migrations occur on a 1-time basis, so unless your production database is large, the performance impact is limited.
That’s a good question. First, if you need all your users to have a status value, you would better specify a default value for new users to ensure it is not nil.
This can be added as a parameter in the migration that adds the column, or later in another migration, as such:
I couldn’t agree more with you on many of the points you made.
So far, my lifestyle has allowed me to live in 16 cities, in 8 countries. I can tell you Silicon Valley is a disappointing place to live in compared to many other places around the world. But you seem so determined to leave it, so driven, that out of all places…
But we’re not talking about cooling the temperature below pre-industrial levels, on average. So the amount of evaporation and rain would still be on average the same as during this period (considering a large enough zone, and large enough timespan). So on this front I would not worry. It also seems that it would be reversible, in case we would do too…
I think you’re right, Tesla still has a lot to prove and to do before becoming a market leader on the mass market. What I was trying to say is that it is indeed now selling a vehicle at a price that makes it mass market, and that it is the only new car company to have achieved such thing and at such a scale for about 50 years, which is quite impressive.
Yes, you are right, we had a debate with draft readers over whether Bitcoin (which is essentially cash) should be compared to cash only, or to money supply in a larger term. I think it’s safer and righter to put it in perspective with both, since it’s still relevant as CHF’s M1 and Bitcoin’s market cap are in the same order of magnitude. I’ll adapt the wording for that, thanks for your feedback!