I love that we're getting new languages lately, but almost all of them seem to be ignore the significant new requirement of our age: parallelism & concurrency.
Specifically, you need lightweight processes and no-shared-memroy architecture.
While the number of cores on a machine is remaining relatively low, the number of machines in a system are going up.
Erlang got this right and build a lot of infrastructure around it (OTP) and while you can't replicate that infrastructure quickly you can get the fundamentals right.
Simply getting this wrong rules out a lot of languages from consideration (because why learn a new language that is going to be obsolete, or only chosen by people who don't understand how to build systems?)
It's a lot easier to get this in when you're new and can make major changes to the language. Once you start to solidify it would break things- this is why Go's fake concurrency is a tragedy and a huge missed opportunity.
Specifically, you need lightweight processes and no-shared-memroy architecture.
While the number of cores on a machine is remaining relatively low, the number of machines in a system are going up.
Erlang got this right and build a lot of infrastructure around it (OTP) and while you can't replicate that infrastructure quickly you can get the fundamentals right.
Simply getting this wrong rules out a lot of languages from consideration (because why learn a new language that is going to be obsolete, or only chosen by people who don't understand how to build systems?)
It's a lot easier to get this in when you're new and can make major changes to the language. Once you start to solidify it would break things- this is why Go's fake concurrency is a tragedy and a huge missed opportunity.