No, it says nothing about off line. It says “off platform”, meaning, twitter will track it’s users general surfing habits on sites other than twitter.com.
Off course that’s what I meant. Will track “USERS” while not on Twitter. Which is already done. I used my laptop today to google real estate in certain area. Twenty minutes later I opened up facebook on my cell phone and there was an advertisement for real estate in the state I had googled on my laptop. This is already here. This isn’t news.