While Orb of Origin is on the battlefield, activating abilities of other artifacts may cause them to lose other relevant abilities when they become tapped. For example, if you activate Thought Vessel’s “{T}: Add {C}” ability, it’ll lose its “You have no maximum hand size” ability as long as it remains tapped. Similarly, activating Sword of the Meek’s equip ability (which costs an additional {T} while Orb of Origin is on the battlefield) will cause it to lose “Equipped creature gets +1/+2” as long as it remains tapped.