You cannot copy "all" of the information stored in the human body. Briefly, this happens because the physical limitations of information storage require cooling (Landauer's principle) which requires kT×log(2) energy per bit, or about 2.5 zJ at room temperature. The brain's memory capacity is about 2.5 * 10^15 bytes (
https://www.scientificamerican.com/article/what-is-the-memor...), but the amount of information which can be retrieved is
much smaller than the amount of information required to fully describe the system -- in the same way that knowing the contents of my hard disk will not help you recreate my laptop. The brain weighs about 1300 grams, of which maybe 5%, or 65 grams, is protein, composed of amino acids which weigh about 0.25 zeptograms, so contains about 2.6 * 10^23 amino acids. If we assume that we need a kilobit of information per amino acid, which seems like a lowball, it would require about 650 kilojoules of energy
at the absolute thermodynamic minimum (vastly more efficient than real computers) just to
store the information in the human brain. The electrical power required to simulate its dynamics would be tectonic, and that's assuming
perfect efficiency.
Therefore, no computer that is composed of components which interact with the electromagnetic field and which operates at a temperature comparable to Earth temperatures will ever simulate a human mind to complete accuracy. It will always be an approximation.
Therefore, no computer that is composed of components which interact with the electromagnetic field and which operates at a temperature comparable to Earth temperatures will ever simulate a human mind to complete accuracy. It will always be an approximation.