Ask HN: Which technology wasn't as big of a deal as you thought it would be?2 ポイント·投稿者 sillysaurus3·9 年前·2 コメント2 コメントコメントを投稿[–]skshogun·9 年前返信Home 3D printers. I think they should still be around but I imagined that they would be more widespread and practical.[–]video-host·9 年前返信Google wave