[dba-Tech] Passthougts to replace passwords?

[Rocky Smolin]

http://www.techrepublic.com/article/is-it-time-to-replace-passwords-with-pas
sthoughts/?tag=nl.e101
<blocked::http://www.techrepublic.com/article/is-it-time-to-replace-password
s-with-passthoughts/?tag=nl.e101&s_cid=e101&ttag=e101&ftag=TRE684d531>
&s_cid=e101&ttag=e101&ftag=TRE684d531
 
Impersonation is of course difficult.  However, it seems to me that the
signal from brain to password protected site is still digital.  Couldn't the
signal be intercepted - like a key logger but a thought logger; it's still a
string of bits - and that recorded string be subsequently used to gain
access?
 
r