I think about that sometimes. I do not believe that it is really a technical problem. While there are arguments to be made (not safe by default, garbage collec

I think about that sometimes. I do not believe that it is really a technical problem. While there are arguments to be made (not safe by default, garbage collection, lacking IDE support, ...) these are not killer arguments. In many cases, D has more advantages than disadvantages. Lack of manpower is a problem. Only Walter Bright and Andrei Alexandrescu work full-time on D. The rest is volunteers. This means development proceeds very slowly compared to Go or Rust. On the other hand, maybe it is more a symptom than the problem. Perception is a big part. Even in this discussion you can see people remember the "dual standard library problem" which was solved a decade ago. Maybe D just needs a good PR team.