Source Raj Vedam
In my earlier post, (https://yourtimeormine.blogspot.com/2018/06/spacetime-gravitational-fields-srimad.html), I pointed out how Kakudmi's travels amounting to 116.64 million years could have been the result of traveling at close to the speed of light, or being in the presence of a super-massive object's gravitational field, and in either case, experiencing time-dilation.
Brahma remarks that while Kakudmi was waiting for the Gandharvan concert to complete, 27 Chatur Yugas had passed on Earth. This gives us additional data to estimate the duration of the concert.
Aryabhata & Surya Siddhanta provide us the data for each Chatur Yuga composed of Satya, Treta, Dwapara and Kali, in the 4:3:2:1 ratio, amounting to 4.32 million years.
Each Manu's lifetime amounts to 71 Chaturyugas, and 14 such Manus forms a Kalpa or Brahma's day. Brahma's day therefore amounts to 4.32 billion years. A Pralaya includes a Brahma's day and night and a period of silence, and will result in a cosmic annhilation and re-creation.
Our best understanding of our current (local) reality says the universe is 13.8 billion years old. Scientists have estimated this after the discoveries of red shift in all galaxies implying expansion in all directions, cosmic microwave background discovered in 1960s implying the Big Bang Singularity, and CMB measurements by space probes.
If we assume this Big Bang event to have been the origin of the current universe and therefore the start of a new day of Brahma, then considering Brahma's Day+Night = 8.64 billion years, the period of silence is now 13.8-8.64 = 5.16 billion years. This assumption can be false if the Big Bang were merely a manifestation of the local universe, and we are part of a multi-universe reality.
Each Brahma lives for a 100 such Brahma years. We are currently in the 51st year of the current Brahma. A year of Brahma is 3.1104 trillion Earth years, and 50 such years implies 155.52 trillion Earth year since the current Brahma took charge.
When our current understanding of science is reconciled to Hindu cosmological models, it implies a cyclical reality of creation and dissolution. While Stephen Hawking had difficulty to express what there was "before the Big Bang" (implying a beginning, and a creator and creation 13.8 billion years ago), Hindu cosmology is quite clear - a pulsating reality with oscillation cycle of Brahma's periodicity.
Thus talking about the age of the universe is absurd in Hindu cosmology's concept of Brahman - there is no beginning or end to it, and local realities of yugas, manavataras, kalpa are cyclical. The 13.8 billion year estimate is therefore applicable to the current local (and observed/measured) reality only.
And what about the duration of Brahma's concert witnessed by Kakudmi? A day and night of Brahma is 8.64 billion years. A day in ancient Indian time units has 30 muhurtas of 48 minutes each. Thus each Muhurta of Brahma is 288 million years.
In 2012, scientists estimated the time for the solar system to go around the Galactic center once, and found it to be around 250 million years. This figure is tantalizingly close to the estimate of Brahma's Muhurta, i.e., a Galactic Year is equal to a Muhurta of Brahma.
Each minute of Brahma is 6 million Earth years. Kakudmi spent 116.64 million Earth years listening to the Gandharvan concert. Brahma's concert therefore took 116.64/6 = 19 min, 26 seconds in dilated time. By the time the concert was over, the solar system had gone halfway around the Galactic Center!
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