The OP covers all the salient points. We might as well throw in antigravity and FTL travel since we have left reality behind. This is classic Musk. Right down to asking the public to solve his problem for free. Nuts.
As far as the dream that maybe THIS data can be compressed that much, this is analog waveform data converted to digital samples (10b each). IF the information is actually low enough frequency that Nyquist can be satisfied at that compression level, the simplest approach is to just drop the sampling frequency and cut out the middle man. Either the people designing this monster are ignorant or the information is actually at frequencies too high to satisfy Nyquist, leading us right back to la la land.
As far as the dream that maybe THIS data can be compressed that much, this is analog waveform data converted to digital samples (10b each). IF the information is actually low enough frequency that Nyquist can be satisfied at that compression level, the simplest approach is to just drop the sampling frequency and cut out the middle man. Either the people designing this monster are ignorant or the information is actually at frequencies too high to satisfy Nyquist, leading us right back to la la land.