this is another frequently ask question answered and replied to by this company as to why specifically around that time, the year 2045 would be theoretically possible for this type of technology would be available it reads as fallows:
What makes you think technology will develop fast enough to enable the type of advancement you envision by 2045?
The development of technology in the modern world is happening exponentially. Everyone knows about Moore's Law, whereby the power of computers doubles every eighteen months. In addition, in the conference «Future Talks», held in October 2010 in Vienna, futurologist Ray Kurzweil, known for his accurate predictions of technological developments, suggested that by the mid-2040's all the organs of the human body could be replaced by artificial ones, whose characteristics will be superior to their biological counterparts by all measures.
Similarly, other scientists believe that the middle of this century will be the point of singularity. For example, Alexander Panov in Russia and Australian Graeme Snooks independently found that the qualitative transitions in the history of our civilization take place in the accelerated mode, and at about 2045, humanity must enter a certain mode of evolutionary singularity, beyond which it becomes difficult to make predictions. In short, many exciting developments await us in the middle of this century, and all of them, inevitably, will be linked to the developments of new technology.
In this century alone we’ve witnessed a lot of technological shifts and there is no reason to believe that our goal is unattainable if you look at the accelerating technological progress.
if you do not know about Moore's Law I will link a explanation of this topic for you to if you wish research at your own time https://en.wikipedia.org/wiki/Moore's_law
there is the link... as for the concept of a computer that simulates voice patterns of a human and interacts even closely resembles a human they have already made this AI her name is Sophia:
Sophia is a social humanoid robot developed by the Hong Kong-based company Hanson Robotics.[1] Sophia was activated on February 14, 2016,[2] and made her first public appearance in mid-March 2016 at South by Southwest (SXSW) in Austin, Texas, United States.[3]
[MEDIA=youtube]1y3XdwTa1cA[/MEDIA]
she has bin interviewed and covered many times in the past and present....
thank you finished for responding and giving a different perspective to this topic