The 53+ startups seems like a joke. If you're not rounding why use the + and not the exact number? Along with this strange interpretation of concurrent users.
The tweeter seems to be head of a software firm. He has a client for whom he’s building an MVP. That is the ‘minimum viable product’ – a rudimentary, first version of a piece of software that has just enough features to actually solve the client’s business needs.
For these MVPs, nice-to-have features and certain ‘quality’ measures (such as response times or the number of users it supports concurrently (i.e., at the same time)) are often of secondary concern.
The client wanted the MVP to handle 100 users concurrently (say, 100 people watch a video simultaneously, or 100 people use the web shop at the same time). The tweeter then tries to reason, with shitass math, that that means that the client expects 8.6 million users per day (100 for every second of the day).
8,640,000/100= 86,400 somethings now divide by 24hr..3600, divide by 60min per hour..60, divide by 60 seconds per minute=1...so 100 new users per second at the same time for 24hrs. I've already spent a good two or three minutes writing this, so 1second attention span is not at all impressive in any way measurable.
OK bud pats head
Someone needs to stop starting and start finishing. :-)