Wang, I can't speak for John. I don't know what
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I don't know what I don't know.
I know John has returned millions of shares.
I don't know John's personal financial situation but he should make decisions based on his own personal circumstances as we all should.
I know the technology works.
I know I have been averaging down, most recently yesterday at $.05/share. Most the shares I own were bought since I saw processor #3 in operation in late 2013, so my average cost basis around $0.30.
I know success is not guaranteed, however I am very comfortable with my due diligence and with my position.