Date: December 19th, 2008 05:34 am (UTC)
Birth control pills and emergency contraceptive DO NOT (at all) prevent the implantation of a fertilized egg. There is NO reason to believe that they do - it makes no biological sense.

However, it cannot be PROVEN that they don't because it's impossible to tell whether or not they do. You can do studies to show that they are effective - and you can do studies to show that birth control pills do not harm implanted fertilized eggs. However, it's my understanding that trying to show (empirically) that hormonal birth control doesn't effect the implantation of an egg is simply not possible.

For example, when I open the refrigerator door, the light turns on. I can either assume that there is some sort of switch that turns it on, or an invisible elf. You certainly can't PROVE that it isn't an invisible elf, so I suppose that I should be charged with owning an elf slave.
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Things I need to remember:
• Asking for help is not, as it turns out, fatal.
• Laughing is easier than pulling your hair out, and doesn't have the unfortunate side effect of making you look like a plague victim.
• Even the biggest tasks can be defeated if taken a bit at a time.
• I can write a paper the night before it's due, but the results are not all they could be.
• Be thorough, but focused.
• Trust yourself.
• Honesty, always.

Historians are the Cassandras of the Humanities

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