"technically", contains within, the concept, the feeling at the least, that there is something that is based on science. That demands much more than a smile, Casi.
These responses are all good, insightful, and helpful... sort of the answers I anticipated. An answer that I also anticipated that is missing, however, is one that I thought I learned in my freshman college English course many years ago: "these ones" is reduntant... therefore, "these" is the only correct form (assuming the rule against reduntancy is to be respected.... obviously not always the ne
The problem I see with this "technical" perspective is that it may be too narrow: the plural objects being referred to may not be merely "two" things, but may be more... maybe three +.
Hence, the generic "ones" seems to do the job especially well when there are such undefined multiple objects to refer to. Course, maybe just plain "these" is also quite adequate, if a non-technical view