 Moravec 's paradox : Proving theorems and solving geometry problems is comparatively easy for computers , but a supposedly simple task like recognizing a face or crossing a room without bumping into anything is extremely difficult . This helps explain why research into vision and robotics had made so little progress by the middle 1970s . 
 Moravec <a href='null_genetive' title='1'><mark>'s</mark></a>paradox : Proving theorems and solving geometry problems <a href='drop_aux' title='2'><mark>is</mark></a>comparatively easy for computers , but a supposedly simple task like recognizing a face or crossing a room without bumping into anything <a href='drop_aux' title='3'><mark>is</mark></a>extremely difficult . This <a href='uninflect' title='4'><mark>helps</mark></a> explain why research into vision and robotics <a href='been_done' title='5'><mark>had</mark></a> made so little progress by the middle 1970s . 
Moravec  paradox : Proving theorems and solving geometry problems comparatively easy for computers , but a supposedly simple task like recognizing a face or crossing a room without bumping into anything extremely difficult . dis help explain why research into vision and robotics done made so little progress by the middle 1970s .