&gt; Whatever computer scientists have proposed since then apparently hasn&#x27;t been as good.... so they can all just pack it up and go home?<p>1. Most modern high-performance garbage collectors are both concurrent&#x2F;incremental and generational. Generational GC is really important for throughput and I think Go will need to get it eventually.<p>2. The tri-color marking algorithm plus the idea of a nursery and tenured generation are all very old as far as ideas go, but the devil is in the details, and that&#x27;s where the research lies. Hash tables, for example, date back to the &#x27;50s, but there&#x27;s been constant research on refinements of the technique up to the present day.