If evolution is valid, how could an eyeball develop, let alone two, symmetrical in an even position on a face, and why would it evolve at all if it wasn’t needed before?

I found an answer from www.quora.com
If evolution is valid, how could an eyeball develop, let alone two ...
If you are already bilaterally symmetrical when you evolve eyes, you ... As for need, the need and capacity to detect light was present long ... an even position on a face, and why would it evolve at all if it wasn't needed before?
For more information, see If evolution is valid, how could an eyeball develop, let alone two ...
I found an answer from en.wikipedia.org
Bertrand Russell - Wikiquote
1.7.1 A History of Western Philosophy (1945); 1.7.2 Philosophy for Laymen (1946 ) .... It is true that numerous instances are not always necessary to establish a law , ... The belief in solipsism might be false even if I were the only person or thing in ... of a universe in ruins – all these things, if not quite beyond dispute, are yet so ...
For more information, see Bertrand Russell - Wikiquote
I found an answer from plato.stanford.edu
Game Theory (Stanford Encyclopedia of Philosophy)
Jan 25, 1997 ... For example, in two of Plato's texts, the Laches and the Symposium, Socrates ... If the soldiers really are brave, then this surely isn't the outcome any of them ... Philosophers share with social scientists the need to be able to ..... Each player in a game faces a choice among two or more possible strategies.
For more information, see Game Theory (Stanford Encyclopedia of Philosophy)
I found an answer from www.nationalgeographic.com
The Changing Face of Saudi Women
In a deeply conservative culture, they are carefully redefining the boundaries of public life. ... Sami, and their two small sons takes up one floor of a three-story building in a ... There are women here who won't even consider a job that requires it. .... In Saudi Arabia all restaurants serving both men and women have divided ...
For more information, see The Changing Face of Saudi Women
I found an answer from www.smithsonianmag.com
https://www.smithsonianmag.com/photocontest/detail/natural-world ...
This event was a experience everyone should strive to see. ... But I will pause sometimes to watch them and for that brief moment all my problems ... home and find caves or pitch rudimentary tents wherever they need to. .... We captured a Cairn sitting between two kinds of cloud formations . ...... Moscow RU Re-build it again ...
For more information, see https://www.smithsonianmag.com/photocontest/detail/natural-world ...