Unit two set 4

A man is in the room with a rule book. When he receives a Chinese symbol as input, he follows the instructions in the rule book which produces other Chinese characters which it presents as output.

• Just because the man writes the Chinese symbolize doesn't mean that he knows Chinese 
• Raises the question of if the man knows chines are not. It seems as though he does but he is just minapulating the symbolize with the assistance of the rule book.

• The process of trying to explain our qualitative and subjective experiences such as our vivid experiences of the world, our pain, how we taste, touch see and why we experience these things at all. 
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Thesus completely rebuilds his ship, replaces, the parts, and throws the old one overboard. The simple version ask does he arrive on the same ship as the one he left on? Of course, his boat has changed but is the boat still the boat?

• - It is puzzling because of the question of if A (the boat that he started his voyage on) = B ( the boat that he finished his voyage on). 
• - If not then why not? Where do you draw the line

Like the simple version but with one addition. While Thesus has been traveling down the river, another boat (boat C) has been following him and has picked up all of the parts that hes thrown overbaord. His friend has used the thrown parts and informs thesus that he has rebuilt the boat .

• This version is complex because the identity of all three of the ships has to be decided. The question raises of if A=C or if A=B or if A=A .
• -One might argue that A=C, because C has the original parts of A.
• - One might argue that A=B because Theseus never gets off of the boat  
• - One might argue that A=A because Theseus technically never leaves A

• The brain criterion of identity states that you at 2 years old (Person B) has the same brain as you at 20 years old (Person A)
• - Same brain = same person)

• - Brain mapping cases or brain rejuvenation. 
• The problem with this theory was discussed in night one. When Julia died and Maria suffered from a stroke, the doctors took julias brain and placed it into marias. The issue/ question of who is who is raised. Is maria still maria even with another brain?