How to choose the optimal programming language and generally a technology stack for a project?

Question

Startups

Recently I asked the question "Which programming language is better for high load w... - in response I received a storm of emotions and a minimum of constructiveness, but the main idea was - you need to choose for the project. That, in fact, is the question - how to choose for the project? Which is better copes with what is easier to scale,
etc. CLARIFICATION: Such factors as "what I already know", "which developers are easier to find", "what hosting is cheaper" and the like - we exclude from the task.

Answer 1

> That, in fact, is the question - how to choose a project?
Where is the question? I don’t see it point-blank, because yours is similar to “how to choose shoes for your feet”. No size, no women's or men's, winter or summer.
To select something for a project, you need to describe the project in as much detail as possible. And already under its characteristics it will be possible to look for something. So stop asking questions without a question.

Answer 2

How much can you spam a toaster with the same question?
In the last question, it was already said that all popular solutions are suitable.

Answer 3

choose what you know
to master at an excellent level any stack on demand is extremely difficult
everything scales about the same
99.99 percent of projects do not require scaling

Answer 4

Use the most common technologies, programming languages ​​and frameworks. In this case, you will not have problems with the developers and project support.