It is extremely unlikely, and even if the voltage went wonky for some reason and exceeded the limits of the 'brick' it would more than likely only damage the brick and not the computer itself.

The so-and-so in front of you in economy is more likely to suddenly recline and crush your screen or any other number of possible disasters.

If you are paranoid and are heading away from familiar places, stick a spare power brick in your checked luggage. I tend to keep spares wherever I used my notebook computer for extended periods of time. They are not unreasonable cost-wise if you order them before you need them urgently.

Edit: Power brick (huge 330W one, most are much smaller!):

If you (like me) reside primarily in a 120V country, then your poor aging power brick will suddenly see 240V for the first time in a while when you go abroad- and the chances of a sudden failure are somewhat increased, so having a spare along may not be a bad idea. Security folks can get snarky in some places if you can't demonstrate your computer starting up and force you to leave the computer behind even if you were not depending on it (I saw this happen to a fellow traveler earlier this year in Addis Ababa airport even though the connection was entirely airside).

It is extremely unlikely, and even if the voltage went wonky for some reason and exceeded the limits of the 'brick' it would more than likely only damage the brick and not the computer itself.

The so-and-so in front of you in economy is more likely to suddenly recline and crush your screen or any other number of possible disasters.

If you are paranoid and are heading away from familiar places, stick a spare power brick in your checked luggage. I tend to keep spares wherever I use my notebook computer for extended periods of time. They are not unreasonable cost-wise if you order them before you need them urgently.

Edit: Power brick (huge 330W one, most are much smaller!):

If you (like me) reside primarily in a 120V country, then your poor aging power brick will suddenly see 240V for the first time in a while when you go abroad- and the chances of a sudden failure are somewhat increased, so having a spare along may not be a bad idea. Security folks can get snarky in some places if you can't demonstrate your computer starting up and force you to leave the computer behind even if you were not depending on it (I saw this happen to a fellow traveler earlier this year in Addis Ababa airport even though the connection was entirely airside).

It is extremely unlikely, and even if the voltage went wonky for some reason and exceeded the limits of the 'brick' it would more than likely only damage the brick and not the computer itself.

The so-and-so in front of you in economy is more likely to suddenly recline and crush your screen or any other number of possible disasters.

If you are paranoid and are heading away from familiar places, stick a spare in your checked luggage. I tend to keep spares wherever I used my notebook computer for extended periods of time. They are not unreasonable cost-wise if you order them before you need them urgently.

It is extremely unlikely, and even if the voltage went wonky for some reason and exceeded the limits of the 'brick' it would more than likely only damage the brick and not the computer itself.

The so-and-so in front of you in economy is more likely to suddenly recline and crush your screen or any other number of possible disasters.

If you are paranoid and are heading away from familiar places, stick a spare power brick in your checked luggage. I tend to keep spares wherever I used my notebook computer for extended periods of time. They are not unreasonable cost-wise if you order them before you need them urgently.

Edit: Power brick (huge 330W one, most are much smaller!):

If you (like me) reside primarily in a 120V country, then your poor aging power brick will suddenly see 240V for the first time in a while when you go abroad- and the chances of a sudden failure are somewhat increased, so having a spare along may not be a bad idea. Security folks can get snarky in some places if you can't demonstrate your computer starting up and force you to leave the computer behind even if you were not depending on it (I saw this happen to a fellow traveler earlier this year in Addis Ababa airport even though the connection was entirely airside).