human brain data storage
the problem with organic computers is that once data is stored in an organic fashion, it is near-impossible to change the data once it is stored without the data becoming corrupt.
i tried briefly to find the article where ibm developed an organic computer to calculate pi to a certain number of decimals using an organic computer but couldn't find it.
if this technology were to be further developed, i imagine that the only way that data could be over-written without becoming corrupt were if the data were constantly changing, a bit like a real-time constantly changing file.
to explain in further detail, "old dog, new tricks" type of scenario: if you try to teach an old dog to bark when you say "sit" after the dog has been taught to sit after saying "sit" for all of it's life, the dog may learn to bark temporarily when you say "sit" but would soon learn to revert to sitting because the command "sit" has been more hard-wired into the dog's brain.
then to explain the real-time changing file: encryption with synchronised 'random' numbers (two code generators, one that synchronises with the brain's random number generator, and one that synchronises on the file retrieval device) applied to both the processor (thinking) and data, via an encryption.
assuming the data can be fed into the brain, and the data can be retrieved from the brain, the brain would have to constantly change the data. this is because otherwise if you were to over-write the brain's storage with another file, without it being constantly changed, the data would either revert to the original file (like the "sit" dog example,) or, more likely, both files would become corrupt.
if the brain's storage involved constantly changing the data (or thinking, which all brains constantly do) then the data can be kept in tact exactly as like a flash drive via an encryption mechanism that the brain can cope with, without too badly affecting day-to-day tasks (or at all?) and that way files can be removed and replaced.