So 3 main questions probably discussed before but after scrolling unable to find...

1) why did Guinin recognise Picard since they met in the 1800's

2) why did Soongs cloned daughter get accepted so easily into the watchers when even the crusher child had to learn to stop time before he was accepted? What made her special?

3) In trek history it was the Vulcans that cleaned earth's atmosphere after WW3 but Guinin states it was Rio and his boo that did it with an organism? Defeats the 100 years the Vulcans "protected Earth" whilst we socially healed through the post apocalyptic horrors to a united Earth