I see some potential use of this, for example as soon as Google crawlers reach the site I know that it is accessible from outside and I destroy the site.

That seems to be the exact use case. Did you want to elaborate on why you find that useful?

What is the purpose of a website that is inaccessible "from outside"?

Maybe it's a resource that should only be used by people in a particular organization?

It's not a purpose. It is a detection of state, however.

So basically I have to pay for the hardware and then see annoying ads too?

I wish it was that simple.

Amazing. Is the image(frames of the video) converted to ascii text in the server or on the terminal?

Why did he use internet to communicate it to such a large number of people? He should have written a book and stuck it in some unknown underfunded public library.

I guess because he'd like to see a better internet

I don't see what the problem is if people try to make things easier. As you said web stuff is easier to get into and development there is easier and this is a very good reason why apps should be easy to develop too. App should be as easy to develop as web apps and this is not a bad thing, people's time, energy, intellectual capacity will be saved.

>Any person who has looked at any science at even small depth needs mathematics to express concepts. Mathematics are the lingua franca of the universe. You can't do Physics, Chemistry, Biology or even social sciences like Economics without a basic understanding of mathematics.

I think he was more interested in applied mathematics, ie mathematics that is useful or used in real life scenario than math itself.