another academical wuestion: dies DNA define personality, or does Experience do that?
DNA contributes; it includes coding for tendencies as towards personality traits. But, ultimately, personality is determined by neurological development, which is primarily a result of experience. It's the major reason why it is no clone would ever be able to be aged up to the same physical age as the original.
Edit: Some would suggest a direct neural feed, but that still wouldn't speed things up. It's not so much that the brain can't handle the capacity for the information or the rapid processing as the brain's physical form cannot handle the resulting heat from all of the energy movement going on within it. In other words, trying to speed it up would only cook the brain inside the skull.
Also, other brain fun fact? There's no net difference between a kid who is exposed to music in the womb and focused on education most of his life and a kid who isn't and mixes education with fun. While true that the music and education focus cause more neurons and neuron connections to form, nearly all of these are lost during the synaptic pruning that happens in the teenage years. It's not entirely known what causes the brain to make its decisions about what neurons and neurological connections it will prune and what it won't (in general, it's usually the more-used synapses that are kept, but it's not that uncommon for the brain to prune some of the more used synapses in favor of lesser-used synapses, and sometimes the more-used synapse kept is not related to conscious activities up to that point). This is another massive obstacle in cloning a replica of someone; likely, the synaptic pruning would result in a loss of experiences and personality traits, resulting in the clone having obvious differences from the original.
