Unreal isn't open source
Also a choice quote about Stallman [1]:
"Richard Stallman argues the obvious meaning of term "open source" is that the source code is public/accessible for inspection, without necessarily any other rights granted"
[0] https://en.wikipedia.org/wiki/The_Open_Source_Definition
"Between meetings that week, I was still focused on the need for a better name and came up with the term "open source software." While not ideal, it struck me as good enough. I ran it by at least four others: Eric Drexler, Mark Miller, and Todd Anderson liked it, while a friend in marketing and public relations felt the term "open" had been overused and abused and believed we could do better. He was right in theory; however, I didn't have a better idea... Later that week, on February 5, 1998, a group was assembled at VA Research to brainstorm on strategy. Attending – in addition to Eric Raymond, Todd, and me – were Larry Augustin, Sam Ockman, and attending by phone, Jon "maddog" Hall... Todd was on the ball. Instead of making an assertion that the community should use this specific new term, he did something less directive – a smart thing to do with this community of strong-willed individuals. He simply used the term in a sentence on another topic – just dropped it into the conversation to see what happened.... A few minutes later, one of the others used the term, evidently without noticing, still discussing a topic other than terminology. Todd and I looked at each other out of the corners of our eyes to check: yes, we had both noticed what happened... "
Eric S. Raymond is about Open Source.
There are somewhat subtle, but very important differences between their philosophies.
Eg the Linux kernel deliberately uses GPL 2, and that community has rejected GPL 3.
https://en.wikipedia.org/w/index.php?title=Shared_Source_Ini... lists the following licenses:
- Microsoft Public License (Ms-PL) [open source]
- Microsoft Reciprocal License (Ms-RL) [open source]
- Microsoft Limited Public License (Ms-LPL) [not open source]
- Microsoft Limited Reciprocal License (Ms-LRL) [not open source]
- Microsoft Reference Source License (Ms-RSL) [not open source]
So, "shared source" was clearly not a particular license by MS.
Also, at that time, Microsoft tried to establish this term (by its Shared Source Initiative) for the general concept of "source code is available, but the license is not necessarily open source".
In the linked Wikipedia article, one can read on this:
"However, former OSI president Michael Tiemann considers the phrase 'Shared Source' itself to be a marketing term created by Microsoft. He argues that it is 'an insurgent term that distracts and dilutes the Open Source message by using similar-sounding terms and offering similar-sounding promises'."
Edit: I guess you're asking about 'ESR' and 'RMS.' ESR = Eric Raymond, an early proponent of open source as a communal development model ( http://www.catb.org/~esr/open-source.html ). RMS is Richard Stallman, the originator of the GNU project on which the Linux kernel is based, as well as the GPL. RMS disagrees with ESR, in that he argues that the term "open source" is a distraction from the larger goal of free software ( https://www.gnu.org/philosophy/open-source-misses-the-point....) .
There have been plenty of other authors with strong opinions on the subject but these are the two whose names most often come up in the context. Point being, it is unreasonable to say that "open source" is a term of art (as the GP did) whose meaning will be agreed upon by practitioners and advocates everywhere.
This is certainly something I sometimes do, but not here. What are you talking about?
In any case, "open source" isn't a term of art. It did not originate with ESR or with anyone else in the software development field, so it means whatever anyone wants it to mean.
> No Discrimination Against Fields of Endeavor The license must not restrict anyone from making use of the program in a specific field of endeavor. For example, it may not restrict the program from being used in a business, or from being used for genetic research.