Barring some strong marketing leading up to launch, that&#x27;s not realistic, which is the point of the quote. Instagram&#x27;s first day performance was in the &quot;so good you&#x27;d sound like a joke for suggesting it was possible&quot; territory.<p>With that said, actual viral growth is absurdly fast. I didn&#x27;t really have an understanding of it until one of my tweets got picked up during the Ferguson riots, and the speed is just staggering. It increments faster than you can reload the page. Hundreds of people per second. 25k in a day is totally doable under those circumstances. It&#x27;s one of those things you can read about, but have to see to really internalize.