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It is very much possible to have backups. Bigger question is how to restore them!
Here are bits that support my theory:

1. The biggest proof for this is seen in Reloaded/Revolutions, where Smith has overwritten Bane(A red pill). This itself proves that

   1. Personalities can be read and written from within The Matrix to the real world & back.
   2. Though regular Matrix broadcasts consist of sensory input, the same channel can be used to transfer entire personalities.
   3. Personality downloaded from within the Matrix can be retained even after being disconnected from the Matrix.

2. Moreover, we see in part 1, that Neo is quickly taught kung fu, drunken boxing, and lots of other skills. This itself proves that the link can be used to transfer not just sensory information, but a lot more than that. Learning kung fu is not just a sensory process, neither is learning how to hot wire a bike, nor is learning how to fly a chopper. These are activities that are known as "Global processes" in neurology lingo.

About reanimating from the backup
The important thing here is, the moment you die inside The Matrix, your brain basically shuts down it's signals to the lungs, heart etc, which kills you physically. And once the lungs and the heart shuts down, the brain does too!

So even if the person's mind is backed up in The Matrix, there is no way to make the brain restart the lungs and heart!

An important point to note here is that The Matrix only generates sensory inputs. Think of it like using your keyboard to delete your hard-disk. This will render your machine un-bootable! Similarly, the sensory input of, say being shot at(Formatting your hard disk), will cause the brain to shut down your body(rendering it un-bootable).

It is very much possible to have backups. Bigger question is how to restore them!
Here are bits that support my theory:

1. The biggest proof for this is seen in Reloaded/Revolutions, where Smith has overwritten Bane(A red pill). This itself proves that

   1. Personalities can be read and written from within The Matrix to the real world & back.
   2. Though regular Matrix broadcasts consist of sensory input, the same channel can be used to transfer entire personalities.
   3. Personality downloaded from within the Matrix can be retained even after being disconnected from the Matrix.

2. Moreover, we see in part 1, that Neo is quickly taught kung fu, drunken boxing, and lots of other skills. This itself proves that the link can be used to transfer not just sensory information, but a lot more than that. Learning kung fu is not just a sensory process, neither is learning how to hot wire a bike, nor is learning how to fly a chopper. These are activities that are known as "Global processes" in neurology lingo.

About reanimating from the backup
The important thing here is, the moment you die inside The Matrix, your brain basically shuts down it's signals to the lungs, heart etc, which kills you physically. And once the lungs and the heart shuts down, the brain does too!

So even if the person's mind is backed up in The Matrix, there is no way to make the brain restart the lungs and heart!

An important point to note here is that The Matrix was originally designed only to generate sensory inputs. Think of it like using your keyboard to delete your hard-disk. This will render your machine un-bootable! Similarly, the sensory input of, say being shot at(Formatting your hard disk), will cause the brain to shut down your body(rendering it un-bootable). So the thing here is, although The Matrix does have the technology to support the process, the only things hackers will need, is how to make the brain think that it is alive once again, despite being dead.

It is very much possible to have backups.
Here are bits that support my theory:

1. The biggest proof for this is seen in Reloaded/Revolutions, where Smith has overwritten Bane(A red pill). This itself proves that

   1. Personalities can be read and written from within The Matrix to the real world & back.
   2. Though regular Matrix broadcasts consist of sensory input, the same channel can be used to transfer entire personalities.
   3. Personality downloaded from within the Matrix can be retained even after being disconnected from the Matrix.

2. Moreover, we see in part 1, that Neo is quickly taught kung fu, drunken boxing, and lots of other skills. This itself proves that the link can be used to transfer not just sensory information, but a lot more than that. Learning kung fu is not just a sensory process, neither is learning how to hot wire a bike, nor is learning how to fly a chopper. These are activities that are known as "Global processes" in neurology lingo.

About reanimating from the backup
The important thing here is, the moment you die inside The Matrix, your brain basically shuts down it's signals to the lungs, heart etc, which kills you physically. And once the lungs and the heart shuts down, the brain does too!

So even if the person's mind is backed up in The Matrix, there is no way to make the brain restart the lungs and heart!

An important point to note here is that The Matrix only generates sensory inputs. Think of it like using your keyboard to delete your hard-disk. This will render your machine un-bootable! Similarly, the sensory input of, say being shot at(Formatting your hard disk), will cause the brain to shut down your body(rendering it un-bootable).

It is very much possible to have backups. Bigger question is how to restore them!
Here are bits that support my theory:

1. The biggest proof for this is seen in Reloaded/Revolutions, where Smith has overwritten Bane(A red pill). This itself proves that

   1. Personalities can be read and written from within The Matrix to the real world & back.
   2. Though regular Matrix broadcasts consist of sensory input, the same channel can be used to transfer entire personalities.
   3. Personality downloaded from within the Matrix can be retained even after being disconnected from the Matrix.

2. Moreover, we see in part 1, that Neo is quickly taught kung fu, drunken boxing, and lots of other skills. This itself proves that the link can be used to transfer not just sensory information, but a lot more than that. Learning kung fu is not just a sensory process, neither is learning how to hot wire a bike, nor is learning how to fly a chopper. These are activities that are known as "Global processes" in neurology lingo.

About reanimating from the backup
The important thing here is, the moment you die inside The Matrix, your brain basically shuts down it's signals to the lungs, heart etc, which kills you physically. And once the lungs and the heart shuts down, the brain does too!

So even if the person's mind is backed up in The Matrix, there is no way to make the brain restart the lungs and heart!

An important point to note here is that The Matrix only generates sensory inputs. Think of it like using your keyboard to delete your hard-disk. This will render your machine un-bootable! Similarly, the sensory input of, say being shot at(Formatting your hard disk), will cause the brain to shut down your body(rendering it un-bootable).

It is very much possible to have backups. True.

But the important thing here is, the moment you die inside The Matrix, your brain basically shuts down it's signals to the lungs, heart etc, which kills you physically. And once the lungs and the heart shuts down, the brain does too!

So even if the person's mind is backed up in The Matrix, there is no way to make the brain restart the lungs and heart!

An important point to note here is that The Matrix only generates sensory inputs. Think of it like using your keyboard to delete your hard-disk. This will render your machine un-bootable! Similarly, the sensory input of, say being shot at(Formatting your hard disk), will cause the brain to shut down your body(rendering it un-bootable).

The biggest proof for this is seen in Reloaded/Revolutions, where Smith has overwritten Bane(A red pill). This itself proves that

1. Personalities can be read and written from within The Matrix to the real world & back.
2. Though regular Matrix broadcasts consist of sensory input, the same channel can be used to transfer entire personalities.
3. Personality downloaded from within the Matrix can be retained even after being disconnected from the Matrix.

It is very much possible to have backups.
Here are bits that support my theory:

1. The biggest proof for this is seen in Reloaded/Revolutions, where Smith has overwritten Bane(A red pill). This itself proves that

   1. Personalities can be read and written from within The Matrix to the real world & back.
   2. Though regular Matrix broadcasts consist of sensory input, the same channel can be used to transfer entire personalities.
   3. Personality downloaded from within the Matrix can be retained even after being disconnected from the Matrix.

2. Moreover, we see in part 1, that Neo is quickly taught kung fu, drunken boxing, and lots of other skills. This itself proves that the link can be used to transfer not just sensory information, but a lot more than that. Learning kung fu is not just a sensory process, neither is learning how to hot wire a bike, nor is learning how to fly a chopper. These are activities that are known as "Global processes" in neurology lingo.

About reanimating from the backup
The important thing here is, the moment you die inside The Matrix, your brain basically shuts down it's signals to the lungs, heart etc, which kills you physically. And once the lungs and the heart shuts down, the brain does too!

So even if the person's mind is backed up in The Matrix, there is no way to make the brain restart the lungs and heart!

An important point to note here is that The Matrix only generates sensory inputs. Think of it like using your keyboard to delete your hard-disk. This will render your machine un-bootable! Similarly, the sensory input of, say being shot at(Formatting your hard disk), will cause the brain to shut down your body(rendering it un-bootable).