What about 2 decades ago?
From 2004: https://web.archive.org/web/20150526182019/http://phys.org/n...
EDIT: Here's a more modest proposal of 125 GB in a crystal cube from IBM in 1995: https://web.archive.org/web/19970121005010/http://www.resear...
From 2004: https://web.archive.org/web/20150526182019/http://phys.org/n...
EDIT: Here's a more modest proposal of 125 GB in a crystal cube from IBM in 1995: https://web.archive.org/web/19970121005010/http://www.resear...