"The problem I have with every religion is that they all say they are right, and all the others are wrong."  While Christianity does claim exclusivity on the Truth, the Word of God, unlike any other religion, is manifested not only in scripture but also physically incarnated as the begotten Son of God and is eternally present and reflected in the created order of the cosmos. The manifest reality that things exist would have to presuppose that those things did not come from nothing, and that the source of all things that exist must come from an eternal intelligent being that allows such things to exist; I could go much further into detail the necessity of the God of the Bible to be in order for this reality to exist, and if you're interested in hearing further what I have to say on this, pm me. Essentially, the natural order of things in the cosmos points to the reality that the God of the Bible is the true God.  "There is never any proof, and when asked for it, (Christians) always refer back to their 'faith'"  The reason Christians tend to appeal to faith as the proof that Christianity is the true religion usually comes from Hebrews 11:1, "Now faith is the substance of things hoped for, and the evidence of things unseen." How faith points to Christianity's credibility is not necessarily at the empirical level, but at the supernatural level, often most apparent when individuals who used to be wicked suddenly eschew all evil, unplug from destructive circles and embrace life as a redeemed believer for the rest of his/or her life. For example, the Apostle Paul (formerly named Saul) used to be a zealous murderer of Christians until Jesus Christ Himself revealed Himself to him and transformed Paul's heart with faith in Christ, giving him the desire to believe and repent; Paul would have never repented if it weren't for God giving Him power to do so through His gift of faith, and so is the same for all believers in Christ. Even if someone without faith was presented the perfect rational argumentation that points to the ultimate reality of God's Word (which is reasonably possible), because humanity's sinful corruption cannot embrace the Truth in its own power, those who do not have faith will reject God anyway. Believers believe in Christ not because they were convinced, it's because they were transformed by God Himself. For more information on nature of this point, this documentary may be helpful: https://www.youtube.com/watch?v=aQKjUzotw_Y&list=PL3RD2crtd_e3oKBnRRcv7CQEJR6hUmTE9&index=23&t=0s  "how long do you think the earth has been here?"  I stand by the Truth of the Word of God and embrace the reality that the cosmos is approximately 6000 years old. Here is how I draw the conclusion from scripture:   The heaven and earth was created in 7 days, with each day having an evening and a morning, suggesting that each day was what we now call a cyclical 24-hour day.   Throughout Genesis, the amount of years between the first generation (Adam & Eve), and the days of Moses is marked by the lifespans of every father from Adam to Jacob, and estimating the lifespans of generations leading up to Moses' birth. (approx. 2600 years)   Moses dies when he is 120 years old, making the total years up unto that point approximately 2720 years   Solomon finishes building the first temple of Jerusalem c.1000 B.C.; the amount of years between Solomon's finishing and Moses' death is approximately 500 years, going by the claims of scripture. Add 500 to 2720 you get 3200 years.   Add 3200 to 3019, and you get 6200. Therefore my approximation is 6200 years, give or take a couple hundred.   You're probably wondering why I'm referring to the claims of scripture and making no references to the claims of modern science. The reason why I do this is because I trust what God, an omniscient, eternal and all powerful being who was actually there when He created the cosmos and who actually transformed my heart and brought me my salvation, says far more than what a bunch of fallible human beings say. Objectivity cannot be possible without the ability to know and perceive everything, no matter how many fallible mortals make their claims based off of subjective observations dependent only on five of their senses. While it is indeed useful to take into account our observations of the natural realm, they are never to be championed as objective truth apart from the objectivity and ultimate reality of God's Word.  If you wish to continue this conversation, pm me.