I agree, as long as he's not putting directly money into it respectively making debts to sustain it - even if this fails he will assimilate a lot of know-how i

I agree, as long as he's not putting directly money into it respectively making debts to sustain it - even if this fails he will assimilate a lot of know-how in a lot of different areas (all kinds of soft-skills plus tech-skills plus mgmt skills from organizational to accounting, etc...) that he can use a lot later on. One one hand "Chinese cryptocurrency" might be ok but in general the chinese range covers everything from "excellent" (e.g. Huawei & Geely are a great company respectively holding) to "scam" ( e.g. what shown in the funny&interesting doc "the china hustle" https://www.imdb.com/title/tt7215388/?ref_=nv_sr_1?ref_=nv_sr_1 https://www.imdb.com/title/tt7215388/?ref_=nv_sr_1?ref_=nv_s... ) Focusing on "Chinese cryptocurrency", if that cryptocurrency is meant to be used (as well) within China then it might have a strong starting position (from what I remember the government prohibited bitcoins & Co therefore if this one is admitted it will have a huuuge market) but on the other hand you're right thinking (I'm interpreting this) that even if it's #1 in China and absolutely flawless from a tech-point-of-view, other countries/people/organizations might still not adopt it for fear of the potentially tech-unknown => you might ask him / set friendly challenges about these and other points to see if he's covered all different angles assuming a successful implementation... . Cheers :)