Of course, we are talking about a time way in the future. I hope we will have learned a little by then about raising children.
Sure, but the children always stay one step ahead of us.
Of course, in this scenario, we are talking of building a human from data. Real easy to use slightly different data to create a docile teenager.
Who we are is not just what we know, but also how we feel. That is a complex manifestation of hormone production, reaction to pheromones and other unconscious processes, many at a level below the forebrain.
Any programming of a simulated human, or of a human with some of his biological functions replaced by computer simulations, will have to take this into account.
My personal answer to the Drake Equation is 5 current, active, at-or-beyond civilizations within our galaxy right now at this moment- us being one of them. With that said (in a round galaxy), on average, such places are spaced out 200,000 light years apart.
Then you must not be talking about our galaxy, which is only 100KLY in diameter. This formula makes it unlikely that there are more than two civilizations in the Milky Way, and quite possibly only one.
I wouldn't rule out computers as our successors- only they can span such distances in Spacetime to form a coherent thought.
Yes, the cycle time of our organic processors is very slow. It's been suggested that it takes us about one tenth of one second to form a complete thought, and one tenth of that to sense an external stimulus and begin to react to it.
If humanity can develop interstellar travel, and cruise between stars at 0.1 c, then we can grow to occupy every solar system within a few million years. This is a mere eyeblink of time, compared to the age of the galaxy.
You must only be referring to our galaxy. At that speed it will take one million years merely to reach the other side of it, and about ten million to reach the next one.
If 5 civilisations exist at any one time, why has not one at least, in the last few billion years, occupied the galaxy!
As I pointed out, there was an error in the math. If civilizations are, on the average, 200KLY apart, then there's a really high probability that ours is the only one in this galaxy. I'm not going to spend the morning brushing up on my trigonometry, but I'll estimate that a galaxy will need to be roughly 400-500KLY in diameter before it becomes probable that it hosts five civilizations an average distance of 200KLY apart.
My answer is that intelligent forms of ET are even rarer than you suppose.
Another equally reasonable explanation is that interstellar travel is just as difficult as we think it is, no matter how advanced your science is. Just how good do your engineers have to be, to build a ship that will operate with no outside support for a large fraction of a million years? And how wise do your psychologists, sociologists and other "humanoid scientists" have to be, to set up a community that will survive in that environment for that duration, without reverting to the Stone Age, destroying itself in a war, or being killed off by Gooey Mutant Space Microbes that nobody anticipated?