Competition in paradise comes about by mixing cement in flour and water and producing solid, inedible mess; your original post mixes man made fantasy stories from Bible and hadith with the pure Quran. You come across as an intelligent person but if you wish to discuss the Quran and 'religion' then please study the subject properly beforehand and then present your arguments for and against.
Mankind has free will which negates any God putting knowledge into our hearts and minds. The use of Messengers gives us a chance to accept or deny this, our free choice for which we will reap the results in this life, good or bad. The rest of the animal kingdom has no choice; they are evolutionary programmed to act out their instinctive natures so if you wish for absolute certainty then would you like to become like them or is it better to have loved and lost than never to have loved at all?
Sir, no verse of the Quran has been disproved by science and if you are using the scientific method then follow the evidence.
As you can see from one reply to your post, there are plenty of people that believe the fairy tale creation of man in heaven in a single moment of creation.
Allegorical verses are throughout the Qur'an for those who think and not to be taken literally which is what the mullas have done and you AND I both reject.
2:118 Only those who fail to explore the realm of knowledge say, “Why does God not speak to us directly, nor is a miracle shown to us?” Even thus, as they now speak, spoke those who lived before their times. Their ways of thinking, their hearts and minds are all alike (untouched by the passage of time). We have made clear all the Signs for those who wish to attain conviction [by exploring the internal evidence in these revelations and in the Universe. 2:108, 2:256, 18:29, 42:51, 76:3]
2:119 We have sent you (O Prophet) with the Decisive Truth, as a bearer of glad tidings and as a warner. But you will not be questioned about the companions of the blazing fire.
[13:40. Jaheem = Blazing fire = Insurmountable Barrier to the development of the human ‘self’ = Figuratively, Hell. The human ‘self’ can make progress only by believing in the Divine System and accordingly helping God’s creation. Please see the author's note at the end of this rendition for an understanding of Self-actualization, Afterlife, Paradise and Hellfire]