The source that I use for this article is this translation by Subhash Kak. Kak is well respected in the Hindu apologist circles, so I think I’m using the “right interpretation” of the original text. The Garbha Upanishad has some valid observations about the human body. I’m not contesting that. What I’m interested in is the things it gets wrong. To see why, read the introduction for the primitive science series.
The source doesn’t have verse numbers for me to refer to, but the text is small in size and it is easy to see which part I’m referring to. I’ll put the what the text says in italics followed by my comments on it in normal typeface.
Matter is made up of five elements. I don’t think I need to explain how primitive this is. A glance at the periodic table should suffice.
Heart is the source of fire, which can be interpreted as to mean that the heart generates body heat. The people who wrote the text must have known that the heart pumps blood and hence may have concluded that heat is generated in the heart and carried to other parts of the body by blood. Today we know that heat is also generated in other organs of the body like in the brain, liver and in the muscles. Our skin also plays an important role in maintaining body heat. For example, when the outside temperature is hot, the skin sweats the evaporation of which cools the body. More on body heat here.
Males are born if father's seed is strong. Females are born if mother's seed is strong. If strengths are equal, intersexuals are born. Thanks to science, today we know the actual processes involved in sex determination. It is the male who primarily decides the sex of the offspring. Females have XX chromosome pair and males have XY chromosome pair. If the male contributes X chromosome to the embryo, the baby will be a female. And if the male contributes Y chromosome, the baby will be male.
If [at the time of impregnation] the parents are agitated, the child will be blind, crippled, hunch-backed or stunted. Such things are congenital disorders which occur due to a number of reasons. They have little to do with the how agitated the parents are at the time of sex.
If the vital air moves around, the seed enters in two parts, resulting in twins. Again through science we know that there are two cases for twins - fraternal twins are born when two eggs are fertilized by two different sperm cells and identical twins are born when a fertilized embryo splits into two. There is no “vital air” which splits the seed.
In the ninth month, the baby is reminded of previous birth. Also the baby is born into grief. It has to accept the path of Samkya Yoga to achieve liberation. This is mere speculation. There is zero evidence for past births.
Inside the womb, the baby knows about previous births. Once the baby comes out, maya engulfs the baby. The text views the baby coming out of the vagina as breaking of some sort of a barrier. From the time of fertilization, the baby is always tied to the natural world that Vedic followers love to deride as being merely material. The barrier of maya is imaginary. An interesting thing to note is the barrier exists in a different sense. It is where the baby acquires its bacterial microbiome which will play a vital role throughout the baby’s life.
If you read through the whole text, you will see that the Vedic seers haven't even expressed the possibility that what they say can be wrong. Since they are "enlightened souls", whatever they say has to be true. Such arrogance is truly the domain of religion. Contrast this with science, which doesn't make such absolutist statements. When something is true according to science, the implicit assumption is that it remains true only as long as evidence supports it. Should new evidence which contradicts it turn up, science humbly accepts that it was wrong and updates its knowledge. So much for the "scientific nature" of the Vedas.
The source doesn’t have verse numbers for me to refer to, but the text is small in size and it is easy to see which part I’m referring to. I’ll put the what the text says in italics followed by my comments on it in normal typeface.
Matter is made up of five elements. I don’t think I need to explain how primitive this is. A glance at the periodic table should suffice.
Heart is the source of fire, which can be interpreted as to mean that the heart generates body heat. The people who wrote the text must have known that the heart pumps blood and hence may have concluded that heat is generated in the heart and carried to other parts of the body by blood. Today we know that heat is also generated in other organs of the body like in the brain, liver and in the muscles. Our skin also plays an important role in maintaining body heat. For example, when the outside temperature is hot, the skin sweats the evaporation of which cools the body. More on body heat here.
Males are born if father's seed is strong. Females are born if mother's seed is strong. If strengths are equal, intersexuals are born. Thanks to science, today we know the actual processes involved in sex determination. It is the male who primarily decides the sex of the offspring. Females have XX chromosome pair and males have XY chromosome pair. If the male contributes X chromosome to the embryo, the baby will be a female. And if the male contributes Y chromosome, the baby will be male.
If [at the time of impregnation] the parents are agitated, the child will be blind, crippled, hunch-backed or stunted. Such things are congenital disorders which occur due to a number of reasons. They have little to do with the how agitated the parents are at the time of sex.
If the vital air moves around, the seed enters in two parts, resulting in twins. Again through science we know that there are two cases for twins - fraternal twins are born when two eggs are fertilized by two different sperm cells and identical twins are born when a fertilized embryo splits into two. There is no “vital air” which splits the seed.
In the ninth month, the baby is reminded of previous birth. Also the baby is born into grief. It has to accept the path of Samkya Yoga to achieve liberation. This is mere speculation. There is zero evidence for past births.
Inside the womb, the baby knows about previous births. Once the baby comes out, maya engulfs the baby. The text views the baby coming out of the vagina as breaking of some sort of a barrier. From the time of fertilization, the baby is always tied to the natural world that Vedic followers love to deride as being merely material. The barrier of maya is imaginary. An interesting thing to note is the barrier exists in a different sense. It is where the baby acquires its bacterial microbiome which will play a vital role throughout the baby’s life.
If you read through the whole text, you will see that the Vedic seers haven't even expressed the possibility that what they say can be wrong. Since they are "enlightened souls", whatever they say has to be true. Such arrogance is truly the domain of religion. Contrast this with science, which doesn't make such absolutist statements. When something is true according to science, the implicit assumption is that it remains true only as long as evidence supports it. Should new evidence which contradicts it turn up, science humbly accepts that it was wrong and updates its knowledge. So much for the "scientific nature" of the Vedas.