[fbarred]

If this is real, what about this discovery that made it happen now?

Is it a case that some technology is now available that unlocked this? Or is this trying something and seeing if it works?

Could this discovery have been made 10-20 years ago?

[terafo]

It could've been made not only 10-20 years ago, but, probably even 100-200 years ago(sure about 20th century, not really sure about 19th).

[jeepers6]

COVID.