Most of the material I write averages between 1500-2000 words.  Like I said before there is nothing more frustrating when mistakes like that happen.  It’s an unavoidable thing though because it can happen at any time. It really isn’t dependent on the person who is writing.  Sometimes it’s a simple human error, other times it’s power outages.  If you use a reliable word processing program though you can recover a good portion of your writing if you make a mistake either by hitting undo or in the case of power outages, some processing programs can auto-recover your material. 

In my opinion, the technology is much better now as compared to when I first started writing.  I remember times years ago when I had an article nearly finished and would be well within the 1500-2000 word range and would have to rewrite from scratch due to either a mistake on my part or a power outage.  It’s not an enjoyable experience when you have to do that.