Or some other tech companies: MongoDB had 820 employees as of July 31st [2]. StitchFix had 5,800 employees as of July 31st [3]. Facebook had 17,048 employees as of December, 2016 [4]. Oracle has 136,000 employees [5]!

And many other tech companies are like that. For many of them (although of course not all), their product could be built by a small team in a matter of months. Even counting for things like scaling to larger user counts, having 10 or 100 times the number of employees hardly makes sense to me.

Meanwhile, SpaceX, which is making rockets to send people to Mars, has only around 5,500 employees [6]. It's hard to see that rocket engineering is simpler than a clothing app.

So what are all of those employees working on all day?

[1] https://news.ycombinator.com/item?id=15900109 [2] https://www.sec.gov/Archives/edgar/data/1441816/000104746917006014/a2233365zs-1.htm [3] https://www.sec.gov/Archives/edgar/data/1576942/000119312517313629/d400510ds1.htm [4] https://www.statista.com/statistics/273563/number-of-facebook-employees/ [5] https://www.macroaxis.com/invest/ratio/ORCL--Number_of_Employees [6] https://www.linkedin.com/company/spacex/