I have to agree with the O.P. here. I myself frequently blunder, especially in blitz games. I think the only conclusion is that brain waves are being emitted by my monitor which are causing me to think about Anna Kournikova and not about chess at all! It's hugely unfair!
Also, I think air pollution must be getting bad because I can't run as fast as I could 20 years ago.
for me i dont care about losing whether to a strong rated player or strong program of computer it doesnt matter to me anymore what is important to me is what i learn from every defeat it is easier to learn from ones defeat than from ones winning i consider them as myteachers not my opponent i am glad they are available they want to play with me even if i am lower rated