1. The words of the Holy Quran were meticulously recorded and preserved in writing by the companions of Prophet Muhammad (PBUH) during his lifetime in the 7th century AD. However, the Hadith collections were compiled two centuries later by Persian scholars who lived and died in Khorasan (now Uzbekistan) and Persian (now Iran).
2. Many scientific studies have shown that honest people routinely make mistakes in recalling what they have directly seen and heard in person. Sahih Muslim and Sahih Bukhari were compiled in 9th century by people who were distant from the source in both time and space. They relied entirely on long and complex chains of narrations for their work.
3. There's an old communications game, telegraph, that's played in a circle as a communication class exercise. A message is whispered around from person to person. What the exercise usually proves is how profoundly the message changes as it passes through the distortion of each person's inner "filter."
As we ponder over the above, let's deal with the suggestion to leave such matters to the "religious scholars". Should we really? Haven't we been doing it for centuries?
Leaving it to the "religious experts" has clearly not helped the Muslim ummah. It is widely believed among watchers of Islam and Muslims that taqlid is responsible for the end of the Golden Age of the Islamic Civilization (800-1100AD) and continuing decline since then, particularly in terms of the sciences and the arts.
The Holy Quran tells its readers repeatedly to seek knowledge, think, reason and reflect on our own. Afala Ta'qilun, Afala Yatadabbarun, Afala Tatafakkarun, Afala Tubsirun and similar verses appear over 700 times in the Holy Book of Muslims, far more often than exhortation to salat (prayer), zakat (charity) and saum (fasting).