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Comment by duxup | Hacker News Reader

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duxup·

A recent PBS documentary did a great job talking about all the changes the earth has gone through:

https://www.pbs.org/wgbh/nova/article/the-history-of-earth-i...

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"We're sorry, but this video is no longer available."

Why bother posting the link?

For me the "no longer available" message only flashes briefly, replaced with a login UI to log into a service called OPT Passport so I could (ostensibly) watch it.

Works for me.

Works for me but I’m in the US, member.

Also handy to know if you might want to find it elsewhere.

Did it say "no longer" or just "not"?

It said "no longer". I use said now instead of says, as I just went back to the page, and now the videos all have posters saying it is available with their "passport" accounts. I have perused the PBS site before looking for older content and have been presented with the no longer available message in the past. Which always baffled me. Like, you're the producer of the content. Why is it not available to you of all people?

Here is an hour long video explaining every stage the earth has gone through:

The Whole History of the Earth and Life - https://m.youtube.com/watch?v=SkeNMoDlHUU

It's really mind boggling how many times earth has seen a mass extinction, followed by life appearing again.

As far as I can tell every mass extinction was caused by climate changes.

But learning if those climate changes can/could be prevented is valuable lessons. If an asteroid impacted caused the changes, preventing an asteroid strike is close to possible now. Super volcano eruption would be much less avoidable. Maybe in a few hundred years someone can look back to see if the mechanization of man made a preventable difference. It just might not be man that is doing the looking.

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