Future Timeline

I know nanotechnology is emerging technology but how advance are they today? Is it still 50 to 100 years before we have tiny robots in the body reparing damage and fixing things? Other 50 to 100 years before we have nanites patrolling the body and fixing things and clearing out problems?

What about some thing like the star trek replicator? Is this some thing still 100 years away or more? What kind of crude star trek replicator do they have now?

Despite promising developments in targeted drug delivery and materials science, the idea of nanites patrolling the body or a replicator from Star Trek is still elusive. It is difficult to predict exact timelines, but it may take several decades of continued research and technological advancement to make such concepts a practical reality. Currently, nanotechnology is used more to improve materials, medical diagnostics, and targeted therapies than to solve complex problems such as repairing body damage or replicating objects as depicted in science fiction.