This reads like an incredibly poorly researched article. As in, it sounds like it was written after an hour of googleing and skimming a few of these guides.
It might be interesting to get the opinion of somebody who tried this, mostly out of curiosity.
1. One of the core guidelines is "Don't question it. If you think you may have heard a voice, it was your tulpa." - This becomes important later on
2. True 'sentience', in the meaning that there's a different entity that thinks in parallel to you, is something that seems impossible to achieve. There are a few people who claim that they can do that, but nobody seems to be able to replicate that and at this point I believe that some of the people who think they have a very well manifested tulpa actually suffer from real mental issues that get misinterpreted as tulpa.
After some (a lot) of time spent on creating the Tulpa, I did actually hear a voice that at first surprised me. It genuinely felt like I might be talking to a different person. A huge success, surely, how is it possible that nobody talks about this. However instead of not questioning it, my inquisitive and critical side took over to figure out how it works.
These are my personal findings:
The process of "forcing" a tulpa, not dissimilar to meditation, conditions yourself to:
a) Build a well thought out alternate personality
b) Disassociate certain thoughts from yourself and attribute them to the tulpa
c) Rapidly context switch between two personalities while maintaining the illusion that you are not in fact talking to yourself
In summary, you're training yourself to context-switch and impersonate an alter ego, while also crafting a strong conditioning to ignore that process and instead attribute it to a sentient thought-form
I haven't tried much forcing in earnest, but I've talked to voices in my head that didn't feel like part of me, and I've lurked in r/Tuples for years. It seems pretty common to have "parallel" consciousness among tulpamancers, though I think it depends on how you define and measure that.
Our sense of "continuous consciousness" is already an illusion, built from a series of moments. There are a lot of things about the brain/mind like that that I think make tulpas less unbelievable the more you think about it. Another is that there is a lot of diversity among "normal" brains. If someone can rotate a 3D shape in their head and you can't, you could say one of you has a "real mental issue," or just acknowledge the diversity. Also, a lot of our "thinking" is not conscious; it seems like we experience certain thoughts as "our thoughts that we are consciously thinking" because some process picks out a thought here and there and presents it that way. If another process were to come along and pick out a different 1% of our ongoing thoughts and present it as a coherent stream of consciousness, conforming to a certain personality, it could be another consciousness.
I don't think the brain/mind has one CPU and one program counter and that's that, and anything else is an illusion; I think it's got lots of cores and lots of threads, and if anything the idea that there's one hardcoded main thread is the illusion.
It might be interesting to get the opinion of somebody who tried this, mostly out of curiosity.
1. One of the core guidelines is "Don't question it. If you think you may have heard a voice, it was your tulpa." - This becomes important later on
2. True 'sentience', in the meaning that there's a different entity that thinks in parallel to you, is something that seems impossible to achieve. There are a few people who claim that they can do that, but nobody seems to be able to replicate that and at this point I believe that some of the people who think they have a very well manifested tulpa actually suffer from real mental issues that get misinterpreted as tulpa.
After some (a lot) of time spent on creating the Tulpa, I did actually hear a voice that at first surprised me. It genuinely felt like I might be talking to a different person. A huge success, surely, how is it possible that nobody talks about this. However instead of not questioning it, my inquisitive and critical side took over to figure out how it works. These are my personal findings:
The process of "forcing" a tulpa, not dissimilar to meditation, conditions yourself to:
a) Build a well thought out alternate personality
b) Disassociate certain thoughts from yourself and attribute them to the tulpa
c) Rapidly context switch between two personalities while maintaining the illusion that you are not in fact talking to yourself
In summary, you're training yourself to context-switch and impersonate an alter ego, while also crafting a strong conditioning to ignore that process and instead attribute it to a sentient thought-form