> This is why infinitely scaling pay-as-you-go cloud services terrify me.

It's been a little over a year since I used Firebase in production, so maybe this has changed, but the funny thing is Firebase DB doesn't infinitely scale, despite them advertising that it does.

The Firebase DB caps out at 100k active connections and according to them (at the time) it's a technological limit on their part, so they cannot go higher even if they wanted to.

When we brought this up, they told us they were technically unlimited because you could shard your data into different DBs if you needed more connections, which is like saying all restaurants are all you can eat because you can keep buying more food.