A Couple Corrections/Elaborations

I have posted some false/incomplete factoids on Facebook. As this definitely means a lot to the general population, I will elaborate.  I once said to always look at your destination.  I assumed the wrong factoid in expressing this.  According to the hip-head rule, in some cases you should look away from your destination.  To put this simply, the human body behaves like a pen.  If you push the bottom of the pen, the top goes in the opposite direction.  If you look down, you will head toward the ground, and if you look to far up, you will fall backward.  We must have good posture, because of this.  To move forward, one must stand up straight.  On to the next and final factoid.  I once thought one would have an easier time saying a  vowel, and a tougher time pronouncing a consonant.  Actually, I just have a tough time pronouncing a consonant, because of my collapsed lungs.  Speech science has classified two categories of sounds.  Voiced sounds and voiceless sounds.  Most vowels fall into the voiced category, because they require a lot of vocalization to pronounce.  Most healthy people have a harder time pronouncing voiced sounds than the voiceless sounds.  Most consonants fall into the voiceless category.  Voiceless sounds require a lot of friction and a lot of breathe support.  Just put some fingers on the throat when you talk, to distinguish the difference.  You really feel the voiced sounds vibrate, and you can barely feel the voiceless sounds.  Once I complained about the year, and how it has two "t"'s in it, and I proposed a made-up year of 20ae.  The healthy public would, actually, have a harder time saying 20ae than 2012.  I  only complained because I have  an extremely difficult time pronouncing the letter "t", because I have collapsed lungs, but I currently make them better.  The letter "t" takes a lot of friction and breathe support to say.