I asked this question on IRC before and got some surprising answers.
Suppose, for the sake of argument, you get cryo-preserved and eventually wake up as an upload. Maybe meat->sim transfer ends up being much easier than sim->meat or meat->meat, or something. Further suppose that you are not particularly averse to a digital-only existence, at least not enough to specifically prohibit reviving you if this is the only option. Yet further suppose that sim-you is identical to meat-you for all purposes that meat-you cared about (including all your hidden desires and character faults). Let's also preemptively assume that any other attempts to fight this hypothetical have been satisfactorily resolved, just to get this out of the way.
Now, in the "real world", or at least in the simulation level we are at, there is no evidence that telepathy of any kind exists or is even possible. However, in the sim-world there is no technological reason it cannot be implemented in some way, for just thoughts, or just feelings, or both. There is a lot to be said for having this kind of connection between people (or sims). It gets rid of or marginalizes deception, status games, mis-communication-based biases and fallacies. On the other hand, your privacy disappears completely and so do any advantages over others the meat-you might want to retain in the digital world. And what you perceive as your faults are out there for everyone to see and feel.
As a new upload, you are informed that many "people" decided to get integrated into the telepathic society and appear to be happy about it, with few, if any, defections. There is also the group of those who opted out, and it looks basically like your "normal" mundane human society. There is only a limited and strictly monitored interaction between the two worlds to prevent exploitation/manipulation.
Would you choose to get fully integrated or stay as human-like as possible? Feel free to suggest any other alternative (suicide, start a partially integrated society, etc.).
P.S. This topic has been rather extensively covered in science fiction, but I could not find a quality online discussion anywhere.
In the face of the evidence, I find it implausible that deception is anything even close to 50% of our brain power devoted to language. My reasons: 1) A cellphone must require 100's of thousands of pages of documentation, not to mention a million lines of code or something like that. Deception is completely useless, even counterproductive in writing code, you HAVE to get that right in order for it to even get to the point where you can even start to debug it, let alone improve it. THe documentation for building a cell phone also must contain a tremendous amount of correct information if the incredibly complex phone is to actually have a prayer of working when it is put together.
2) I don't believe you can study the history of philosophy and the sciences without marvelling at the extent to which brilliant humans extracted truth from confusion, and reported it.
3) Even in sex and seduction, where there can be deception, ( of course I love you, let me just put the tip in...) the bulk of the signalling is pretty accurate, with the more desirable women generally ending up with the more desirable men.
4) the person being deceived, on average, must derive more value from communication than harm or else communication would have been bred out of the species. That is, people who couldn't communicate would have had an advantage due to their immunity from deception which was more than their disadvantage from not being able to coordinate. That language continues to exist and appears to be if anything wildly more valuable now than it was when it first evolved to me makes it clear that the engine is good information and yes, there are lots of deceptive strategies that thrive, but only as long as they are LESS successful than the underlying engine.
It is incredibly valuable to understand how systems are exploited in devious ways. But I think it is important to keep in context that deviousness can never exceed value creation in any kind of equilibrium.
The engineers working on various parts of the phone need to be profoundly honest in technical matters, yes. What about the middle-managers? Sales and advertising? A CEO attempting to justify his latest increases in pay to the board of directors?