First dive at 40 meters - Newbies recreational

[yle]

I am defensive when people mistake their opinion or experience for facts or even worse science. I never refuse a good advice and certainly not science.

Science is experience. I understand you are an engineer, so you should understand how science is done. Unfortunately, it's been my experience that many engineers believe in the philosophy "I am an engineer, therefore I know how everything works."

I see far too much of this... as I teach engineering students. And trying to convince them early in their education, before they make a mistake that kills or injures themselves or others, that they do not know everything is the most challenging aspect of my profession.

As I wrote previously, everyone on this thread wants you to be able to dive safely for many years to come. The advice from everyone on this thread is motivated by evidence that was collected in a very scientific manner: repetitive experience. (As a scientist, you should know that the foundation of scientific evidence is repeatability of results. And this is exactly what the collective experience of those posting here represents.)

We wish you well. You are free to disagree with us.

 

[Dody]

Being out of gas is not an emergency if you have a plan that can handle it. If you need to ascend at 18m/minute then it will turn into an emergency because you will actually be short on gas or have no idea whether you have maintained 18m/minute.

Honestly you will not manage 18m/minute. It is hard enough doing 10m/minute. You should try doing going from 25 to 10 or 15 as fast as you dare and see how that turns out.

Once, I ascended at 13m/min from 25 meters to 5 without finning too hard and stopping finning at 12. That’s when I decided to never inflate my BCD while ascending, fearing that I would go too fast. I don’t master it yet.

 

[yle]

You did understand that your OP showed that you were affected by narcosis, right?

No... he's pretty sure it's impossible because he read an article from 2014 about a study that he has decided proves that he wasn't narked.

Very scientific of him: decide what he wants to believe, and then carefully select evidence to support his beliefs.

 

[yle]

This is not experience. This is reading scientific material and you can’t learn with diving experience.

Folks... I think this sums it up. Everyone offering advice to Dody has experience, but as Dody states here... we haven't learned anything. Our experience, apparently, means nothing because he believes one can only learn by reading scientific material.

Dody has already decided what he wants to know, and he has found "scientific" material to affirm his beliefs. Kind of ironic that he thinks this is how science is done.

We still wish you well, Dody. And we hope you are able to safely gain some real experience, even if there is nothing to learn from doing so.

 

[Dody]

Science is experience. I understand you are an engineer, so you should understand how science is done. Unfortunately, it's been my experience that many engineers believe in the philosophy "I am an engineer, therefore I know how everything works."

I see far too much of this... as I teach engineering students. And trying to convince them early in their education, before they make a mistake that kills or injures themselves or others, that they do not know everything is the most challenging aspect of my profession.

As I wrote previously, everyone on this thread wants you to be able to dive safely for many years to come. The advice from everyone on this thread is motivated by evidence that was collected in a very scientific manner: repetitive experience. (As a scientist, you should know that the foundation of scientific evidence is repeatability of results. And this is exactly what the collective experience of those posting here represents.)

We wish you well. You are free to disagree with us.

I don’t disagree with everyone here, thank you. Some even contacted me in private about some comments that were out of line. And I can agree with one person’s point and not all of them.

 

[Dody]

Folks... I think this sums it up. Everyone offering advice to Dody has experience, but as Dody states here... we haven't learned anything. Our experience, apparently, means nothing because he believes one can only learn by reading scientific material.

Dody has already decided what he wants to know, and he has found "scientific" material to affirm his beliefs. Kind of ironic that he thinks this is how science is done.

We still wish you well, Dody. And we hope you are able to safely gain some real experience, even if there is nothing to learn from doing so.

Talk for yourself and not for everyone in here. Thank you.

 

[yle]

Ok. I did not want to do it but you deserve it. Do you only know how a computer works?

Oh please. Teach me.

Everyone on this thread has seen plenty of new divers as arrogant as yourself. You claim that nothing can be learned from experience, but that is only because you have none. Those of us with experience know just how much can be learned from experience.

We hope, for your sake, that you learn this also someday.

 

[Dody]

Ok. I did not want to do it but you deserve it. Do you only know how a computer works? [/QUOTE]

Oh please. Teach me.

Everyone on this thread has seen plenty of new divers as arrogant as yourself. You claim that nothing can be learned from experience, but that is only because you have none. Those of us with experience know just how much can be learned from experience.

We hope, for your sake, that you learn this also someday.[/QUOTE]
I said that nothing can be learnt from experience?!?! Make me laugh. I told you that your diving experience does not make you a scientist. Read carefully. I value experience but not pompous arrogance. And many in here feel the same about likes of you.

 

[Storker]

Would you elaborate on the bolded sentence above in your quote.

Rule of thirds is inflexible. No matter your depth, thirds it is.

Min gas depends on depth. Do the math. My min gas at 30m is quite a bit more than my min gas at 3m.

 

[Storker]

I was talking about your diving experience.

I don't follow you. Please elaborate. Especially about my diving experience, that would be enlightening.