@article{SMBlog:2017-05-08,
	author = {Steven M. Bellovin},
	title = {Physicality and Comprehensibility},
	date = {2017-05-08},
	year = {2017},
	month = {May 8,},
	journal = {SMBlog: Steve Bellovin's Blog (blog)},
	url = {https://www.cs.columbia.edu/~smb/blog/2017-05/2017-05-08.html},
}