Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
username90
on Nov 7, 2019
|
parent
|
context
|
favorite
| on:
What do we really know about the effectiveness of ...
Amazon won the US market, it hasn't won the world yet.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
