How many self-titled "growth hackers" do you know leading growth at billion $ Startups? Zero. How many at ailing Startups? Loads. Got it?
Recent example of Silicon Valley density. Go to the gym. Tim Cook is there. Go to coffee. Eric Schmidt and Zuck both there. All in same day.
Marketers unhappy w/ gmail pre-cache of images: it's ok. It's good 4 users + CTRs. Also, use unique image IDs per recipient 2 measure opens.
A good reminder from Marcus Aurelius: "Simplicity and modesty are the fruits of philosophy; keep me from becoming pompous and proud."