BetterC and TypeInfo Question

[sarn via Digitalmars-d-learn]

Currently a lot of language features generate dependencies on 
TypeInfo, arguably more than needed, but this is changing.  Some 
examples are in this DConf 2017 talk:

https://www.youtube.com/watch?v=endKC3fDxqs

Also, the way the language is designed right now, all modules are 
responsible for containing TypeInfo instances for all their 
types, in case other modules *might* need them.  So, if you 
define a plain old data struct, for example, you get TypeInfo and 
its runtime dependencies.  This isn't a requirement, and Adam has 
just patched DMD to make -betterC leave out the TypeInfo.

> But, even in C++, RTTI is necessary for dynamic casting... so 
> how is D going to address that? I think it is necessary, but 
> can prolly be quite minimal. I will think about it more later.

Does it matter?  C++ programmers already accept that RTTI is 
needed for certain dynamic features.