Unnecessary systems wasn't required, it was non-existent. Gravity on-board the previous beacon.
Weight. Bacon and Eggs, Cereal, Bacon and Eggs, Cereal, Bacon and Eggs, Cereal, Bacon and Eggs, Cereal, Bacon and Eggs, Cereal, Bacon and Eggs, Cereal, Bacon and Eggs, Cereal, Bacon and Eggs, Cereal, Toast. I flicked on.