CPU technology got faster, software more complex, battery technology didn&#x27;t improve that much.<p>Besides everyone seems to want to buy flat things... because... yeah I don&#x27;t know why. &quot;-Look! My MacBook Air is as thin as a piece of paper. -Ok cool, I guess...&quot; Which means there isn&#x27;t much space for a decent enough battery to power the 2 GHz octacore monster in there. So everyone is walking around like zombies looking for wall plugs all the time to charge their expensive $600 ultra high tech phones and tablets.