Shouldn´t know it.
Or maybe Shanks told him about it?
-Kaido is kidnapped by Garling's Dad, his mother isn't a Giant
-Harald gets blackmailed by the WG over Kaido, but the WG loses him in transit
-Years later WG finds Kaido in Vodka Kingdom
-WG tells Vodka King "Give us Kaido, get Reverie seat", King is like "fuck yes here's Kaido"
-Kaido: "Fuck no." McMarineford intensifies, Kaido grows strong off of stealing Marine food.
-Loki finds out about deal with WG
-Loki: "WHERE THE FUCK IS MY BROTHER, HARALD?!?"
-Harald dies, Loki goes out to sea to meet brother
-Loki finds Kaido, they make alliance
-Shanks "Oh hell no, not today." Shanks stops Loki to keep him from joining Kaido, so Luffy can become King (Luffy was 13 when Shanks beat Loki)
-Kaido can't fight Shanks + Giant Army, can't save Loki
-Shanks meets Loki recently, says Luffy will be King of the Pirates
-Loki DOES NOT KNOW Kaido and Linlin lost, no one told him
-Shiki is Mosa. Mosa = Shaggy in Japanse.
-Sh-ik-i = Sh-agg-y, same naming scheme
-Mosa/Shiki was scared by Shanks when he showed up to see Dorry and Brogy
-Luffy leaves to help Mugiwara Crew fight God's Knights
-Mosa/Shiki shows up with newspaper from Morgans
-Loki has been waiting for his brother Kaido to free him
-Shiki: "Mugiwara Luffy killed your brother, Kaido. I'm sorry, Loki, I had no idea Shank's Apprentice was so bloodthirsty. Kaido and I were Nakama... I LOVED HIM SO MUCH! By the way, I stole your keys. If you help me kill Luffy, Loki, I'll let you go."
-Loki: "His Straw Hat will be soaked red with his blood."
Oda might have POPPED OFF