At a $5 billion market cap (and it was $10 billion just a little back), that's not very early adopters anymore I'm sorry. On the stockmarket that'd be called a 'mid-cap' company. Not even small-cap, let alone penny-stock or 'early adopter'. And this is for a 'company' that in this case hasn't even released its first product yet (so its 'early' in that sense of having no product yet, just not so early in the sense of its price).
Just to put things into perspective for you.
Is it right to compare it to a stock though? It's not intending to be a company, if the team fulfil their vision it will be much more than that. I agree that in many senses it's overvalued considering it doesn't have a working platform yet, but investors are taking a risk based on potential, and the quality of Dan's previous projects
Sure, the comparison with stocks is just to give one/some perspective. It's obviously tricky to compare these things with anything that's come before.