Assuming pwgen isn't actually defective (I haven't looked), you can get more entropy in a shorter password with pwgen. The above looks like 6 bits per character to me, so 48 bits in all. That's 4 bits greater --- 16 times better --- than Randall's estimate for "correct horse battery staple", which is much longer. But "correct horse battery staple office" gets you up to 55 bits. Is it going to be easier to remember "correct horse battery staple office" or "C0olz5KM"? And how about typing them without making errors?