Does it show that people coming from HN want to glance at your startup and see what it does, whereas people coming from Google have no idea what to expect and take longer to work out who you are and what you do?
Does it show that neither Google users nor HN users know what you do, but HN users are more experienced with websites and spend less time mentally categorising them?
Does it show that HN users are less interested in marketing / conversion than people who Googled for a related term enough to find your site?
What's the super-valuable insight and how will you use it?