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North of London | Interesting video.
Those of us who have worked land know how quickly plants can re=establish and in these parts how quickly shrubs and then trees re occupy land when man stops cutting them and working the ground.
Your description about it being like the earth was millions of years ago is not totally true.
I am guessing you meant billions of years ago since you mention life crawling out of the goop.
So if you go back those billions of years when life first developed (that would be before it was able to crawl anywhere) the surface of the earth may have looked something like that but the atmosphere was totally different than today.
Most importantly there was no oxygen in the atmosphere and it remained that way for several billion years until a form of anaerobic bacteria started using photosynthesis and releasing O2 (oxygen) as a waste product.
At first this oxygen was absorbed by minerals and organic matter.
This was the source for much of the iron ore we mine today as iron oxidized/rusted and formed layers in the ground.
After some time the exposed minerals were saturated with oxygen and it began to build up in the atmosphere.
There are a couple of hypothesis about just how that progressed but eventually if built up to levels equal to or above todays atmosphere but unfortunately for those anaerobic bacteria too much oxygen cause a massive die off of them.
The higher levels of oxygen allowed multi celled life forms to grow bigger and more complicated since oxygen is a better fuel than the anaerobic methods of sustaining life.
So life was finally able to 'crawl' out and really take over the world.
Now unlike St Helens where life was able to move in from existing areas where it thrived when it first started developing larger forms and on land much diversity entailed as it found ways to thrive.
So while St Helens is impressive it is not a replica of how life took over the world.
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Mount St Helens primordial state
