You would have to be extremely well paid and frugal to save $100K in two years. Sure, it's do-able, but wow. Of course, this is HN, so there's always someone who knows someone's brother's roommate who makes $150K/year at Google but that's a pretty high salary. And to be able to keep $50K of that given the cost of everything? I don't see how it's possible unless you are single, have no kids, no existing debt payments, don't put anything away into IRAs, 401ks, etc. and are are extremely frugal.

But if you do and are, you have $100K. Congratulations. That does you no good when homes are $1M+. Keep saving.