Dream Machine is the third part of the eighth episode of season one of Dexter's Laboratory, which aired on November 27, 1996. In this episode, Dexter has problematic nightmares and invents a machine to help him have good dreams. However, things turn bad when Dee Dee falls asleep.
While in his lab, Dexter is shown playing a circular electronic game titled Simon Says, where he must press the colors in the correct sequences given to him. This is a reference to the real-life electronic game Simon. The game became a favorite among kids and adults and spawned many clones from the 70's, 80's & 90's up to present day.
In this episode Dexter dreams that he finishes grade school, high school, and college receiving all his certificates of completion. This--in theory--may insert that despite being a genius and having nearly perfect grades, Dexter is struggling with something other than grades in his reality.
Dexter is shown drinking Albert Einstein's brain juice (knowledge).
Dexter said that he comprehends the root of all languages. He may have learned them all or it could be clairvoyant reference to Rosetta Stone a language learning software which was introduced to CD-Rom in 1992 and became prominent later in the future.
The "Grandfather Of All Knowledge" could refer to a GOD, as Dexter ascends an escalator to the sky.