Cool! I had no idea.
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2 comments
Please avoid empty 'comments' like this.
These will be the slow death of HNews quality.
What is cool about this? I understand the beauty and also the amazement about not knowing this before, but just to say it's neat is so disconnected from what followed. I.e. "wow, that's so cool the area used to be vast wetlands and now it's all paved over and suffering from droughts etc etc!"
The user you're replying to read a cool article, with some cool photos, learning a cool new fact, and wanted to express that it was "cool" in the comment section of the link.
Don't be weird with people, it makes people less likely to hear your message.