The Mirari Conjecture has two lore counters on it.
({4} magic symbol) ({W} magic symbol) ({W} magic symbol) ({U} magic symbol) ({U} magic symbol) every other turn available.
Steps
At the beginning of your precombat main phase, The Mirari Conjecture triggers, putting a lore counter on itself, sacrificing itself and copying all instant and sorcery spells you cast this turn.
Cast Walk the Aeons by paying ({4} magic symbol) ({U} magic symbol) ({U} magic symbol) .
The Mirari Conjecture triggers, creating a copy of Walk the Aeons.
Resolve both Walk the Aeonss, getting two extra turns after this one.
Cast Brought Back by paying ({W} magic symbol) ({W} magic symbol) .
The Mirari Conjecture triggers, copying Brought Back.
Resolve the first Brought Back, failing to return any permanents to the battlefield.
Resolve the second Brought Back, returning The Mirari Conjecture from your graveyard to the battlefield.
The Mirari Conjecture triggers, putting a lore counter on itself and returning Brought Back from your graveyard to your hand.
Proceed to your next turn.
At the beginning of your precombat main phase, The Mirari Conjecture triggers, putting a lore counter on itself and returning Walk the Aeons from your graveyard to your hand.