savanu

Do you guys boil the milk before adding the culture?

I don't think the fact that you might be still spreading covid when vaccinated is enough of a reason to continue lockdown. As long we are continually getting people vaccinated, we should be fine for returning to normal.

The different efficacy rates of the vaccines do not directly imply anything about spreading covid.

A vaccinated person can have no symptoms of covid and still be spreading (This may or may not be true).

Folks are still studying how effective the vaccines are at preventing spread.

So you are really looking for compiler checks for null? Kind of like kotlin?

var truthy = null; // Compile fails

var nullable? = null; // Compile passes

You don't need value types for this?

How does making Optionals allocated on the stack (value types) prevent this?

Or rather why do you need value types to accomplish this?

The one in the picture is the 100m dish. Frank Drake used the 25m dish. Just being nitpicky, I get your point.

https://en.wikipedia.org/wiki/Drake_equation#History

Its the Greenbank telescope in West Virginia. I don't think its particularly associated with SETI.

The telescope is available on a rental basis. People just schedule it to point it wherever.

Just a heads up, but the GA courses on Udacity don't have any of the programming assignments anymore only the multiple choice quizzes and videos. They were removed when the OMCS program was introduced I think because GA wanted to use those assignments internally.