You can read Brian Muraresku's The Immortality Key for a detailed exploration of this topic.
It certainly isn't beyond criticism, but it's points are substantive and well referenced, giving the reader enough scope to tackle the controversial points themselves, not just take the authors presentation on face value.
It certainly isn't beyond criticism, but it's points are substantive and well referenced, giving the reader enough scope to tackle the controversial points themselves, not just take the authors presentation on face value.