Those were not the same kind of handles AFAIK. This particular article is about pooling objects of the same time AND using indices (which the articles calls han

Those were not the same kind of handles AFAIK. This particular article is about pooling objects of the same time AND using indices (which the articles calls handles) to reference them. They aren't handles by any definition I've heard of in the past. AFAIK the definition of a handle is an opaque reference to some object, when you want to use the object you ask the handle for the object's actual address being aware that the address is only useful for some defined period (like having to call ptr = acquire(handle) ... do work with p ... release(handle) (p is now not valid). Handles by that definition have the usage the can be moved in memory to clear up fragmentation but they have none of the other benefits this particular post is talking about. Those benefits only come from their specific implementation, not from the idea of "handles".