[tedmiston]

Their burn rate is probably even higher than $50MM: presumably they are making some money.

Also, remember they've raised $2B [0].

If that is the burn rate, it's 40 months ~= 3.3 years of runway with everything else constant (admittedly a bad assumption). That's a lot more runway than most startups have. I'd suspect they have multiple alternative burn rates paths to go down that are more/less conservative with burn rate, like a 5- or 10-year runway before being profitable.

[0]: https://www.crunchbase.com/organization/lyft