what does "feasibility" mean here? certainly, no biosynthetic ersatz product is close to approaching the point of feasibility for helium,

does "outraged" means angry here? Scientists have observed how, after a limbic lobotomy, “one impaired monkey stepped on his "outraged" peers as if treading on a log or a rock.

what does "autopilot" mean here? In this state a person appears merely unconscious – sleeping, perhaps – but this is illusory. Here, the reptilian brain is functioning on autopilot despite the permanent loss of other cortexes.

I found a list of most frequently used English words they are not in contexts but I believe they will be useful. many of them will be new for me. and I should learn them. they will be stored in my memory like if they been written with a pencil. they could be removed. when I study them for the next time, they will stuck faster. and each time I study them.. they will be more stable on my memory and I will not forget them easily.. I will be able to recognize a lot of them in contexts I guess.. unless I learned a different meaning of the word than what it shown on the particular context :|