Except if he finds out later that she was hiding this from him deliberately that could be excruciatingly hurtful. Whereas telling him now, I think, is more likely to play out as a “I just found out but you’re still my dad regardless of genetics” thing.

They created Chromium, which means it isn’t EEE - it just means they created a successful product.

I think it’s more likely to be history homework for a North American school completed by an immigrant from HK/Taiwan.