Ask HN: Which technology wasn't as big of a deal as you thought it would be?2 points·by sillysaurus3·9 năm trước·2 comments2 commentsPost comment[–]skshogun·9 năm trướcreplyHome 3D printers. I think they should still be around but I imagined that they would be more widespread and practical.[–]video-host·9 năm trướcreplyGoogle wave