There is no point in debating it really, you either believe or you don't.
And thus the issue arises between those that go off a gut feeling, instinct or guidance from a greater being, and those that want spread sheets of data and observations to support something.
Except I'd rather that gut feelings and instincts and 'guidance from a greater being' were left outside and not brought into biology class, precisely what this whole argument is really about.
we don't have all the pieces for macro evolution by any measure
Can you explain to me what's missing exactly? My convo with a creationist guy in the US a few weeks ago was revealing - and he employed a very common argument. He claimed that there is no fossil record of an intermediate species, and that no intermediate species exist. "Where is the intermediate between a dog and a duck?" was his example. He claimed that there isn't any - but I begged to differ, since there are fossil remains of species that are common ancestors to both modern day ducks and modern day dogs, but they don't bear any resemblance to either.
After ignoring that factual remark, I tried to explain that the mechanism by which common descent works leads to a branching of every domain of life and hence why so-called 'intermediate' species simply do not exist between certain current species (like dogs and ducks), but the fossil record suggests (and genetic evidence proves on a biochemical level) that species do have intermediate properties - to a greater of lesser extent - with other species, and are biochemically related. (For an overview of these relationships, check out
The Tree Of Life Project... I've linked to the point in the tree where 'dogs' and 'ducks' diverge, to illustrate the point I made earlier - click the blue links to go forward, arrowhead on the left to go back...)
As has been said many, many times already, "macroevolution" is fundamentally no different to "microevolution", but for the length of time required perhaps, and I've yet to meet someone who can explain why one happens while the other doesn't.
This thread does provide a great deal of insight and information, but people shouldn't try to prove the other wrong, it just ends up offending people.
I disagree. Why should you be offended when someone proves you wrong? Would you rather stay wrong?? In the pursuit of facts, you are proved wrong all the time, and it is never a bad thing.
For me, the reason is this: you cannot be right or wrong about an 'opinion', or about questions of faith and personal belief - so yes, trying to 'prove' someone's faith is wrong is pointless. But the opposite is true for (scientific) fact. You
can either be right or wrong, and if someone says something that is clearly wrong, you can either mock them for it (which is stupid) or you can attempt to explain why they are wrong by providing evidence and/or a clear explanation. Such is the case with evolution. One can hold any opinions about it that one wants but it doesn't change the facts.
Evolution is too random to be believable.
Evolution is the polar opposite of random. As Perfect Balance hinted at, evolution is perhaps better understood by the phrase originally coined by Darwin himself, "Natural Selection". The life of an organism (or anything for that matter) is dictated by it's capability to survive and reproduce, by the environment, and the organism's ability to adapt on the population level. In any given population, random mutations happen that will give some an advantage over the others. The environment (nature, if you like) selects which of these random mutations is beneficial i.e. if a random mutation results in greater heat resistance, then they will be more likely to survive if the environment becomes hotter etc. So the mutation that confers the advantage may have been random, as might be the change in the environment itself. But the combination of the two is not random. Changes in the environment cause certain mutations to be advantageous, and hence that mutation (genetic sequence) is now more likely to survive because it 'fits' the new environment better...
How something so significant and complex can come from nothing...
It is a millions of times harder to accept that something as significant and complex as a human body could be fashioned from a random pile of 7,000,000,000,000,000,000,000,000,000 atoms than it is to accept that
current life forms formed in a concerted process over billions of years in the process of evolution. As PB says, all living humans start off as a single fertilized egg, yet here we are... the egg doesn't literally morph into a fully grown adult in an instant - it develops gradually and takes years to reach it's final state before it stops growing. The key point is that an adult human doesn't come from nothing but from a single fertilized egg. Similarly, evolution doesn't say that life 'came from nothing' either, but from the vast abundance of suitable material already present on this planet before life took a foothold.