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Discussion Starter #1 (Edited)
So if there exist creatures that can feed and live off something other than meat and vegetables do you think we could apply it to humans in genetic engineering in order to solve the issue of scarcity, so that we do not end up consuming all of the planet's resources so quickly? What if we could take the gene or genes in that species then and put it into every unborn generation of human?

Take for example leeches or mosquitoes and a special type of bat/bird, they do not have to rely on meat or vegetables to survive but feed off blood which is a food source that is extremely sustainable. They survive despite having high population numbers, and just come back every now and then to get their food source many times from the said lizard or mammal without needing to kill them nor needing to harvest/eat a plant.

Other option is find a way to make humans into a species that relies on photosynthesis instead of eating meat, plants or becoming like the above to survive.

Do you think we could try that? Two options we know of so far that we can convert the genetic diet of people into?:

https://en.wikipedia.org/wiki/Hematophagy

https://en.wikipedia.org/wiki/Photosynthesis

There's also other insects that feed off 'tree sap' and etc who can survive off that?
 

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Discussion Starter #3 (Edited)
why?
evolution can't be sped up
This isn't making us 'evolve' but suggestion of pushing us in a different direction so we don't end up consuming all of the planet's food, also the lifeforms which get food from either photosynthesis and well uh blood tend to be free from issues of scarcity? Another might be whatever stuff relies on tree sap.

We already have modified and put genes from one species in another that doesn't have it, its worked plus we do it with our food. Plus have the technology to modify people before they are born but whether we can do that or not is another question, however it might save us.

Do you believe it would solve scarcity of food if we converted humanity into either a species that relies on photosynthesizing or the second option which is 'feeding on blood' to survive, instead of on meat/plants anymore? If we changed the 'biological diet' so that everybody could start getting food from whatever has an unlimited source or massive abundance over and over again.

Just a thought, maybe all starvation/thirst can be completely eliminated in general if done correctly. Many species of creatures that feed on blood as a diet do not have hoarding in their instinctual nature either, or completely lack it but if has to come to that. Its a 'quick sip' then they are off, no consumption of a whole meat or plant. Plants and things that 'photosynthesize' do not experience scarcity or barely at all which is even better.

We are dealing with an issue of overpopulation and this might actually work if pulled off right.
 

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We don't have the surface area for photosynthesis on our bodies, and expanding our diet to things like blood or tree bark might be possible just with modifying digestive bacteria, but that would make us consume more of the world, not less, for that delicious organically grown bamboo. If your goal is to minimize agricultural land, you want to genetically modify our food production, which we already do, so.... Congratulations for ushering the future of the 90s.
 

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Discussion Starter #5 (Edited)
We don't have the surface area for photosynthesis on our bodies, and expanding our diet to things like blood or tree bark might be possible just with modifying digestive bacteria, but that would make us consume more of the world, not less, for that delicious organically grown bamboo. If your goal is to minimize agricultural land, you want to genetically modify our food production, which we already do, so.... Congratulations for ushering the future of the 90s.
I'm saying what if we can alter ourselves so that some of us or the next future generations of humans can survive by either consumption of ugh well blood like the species of bats we know do, and mosquitoes/leeches but if not then photosynthesis? But compared to meat or plants its a very renewable thing, as long as there are living animals or creatures with hearts beating you could harvest them plus it will be regenerated after a certain amount of time for each.

Our digestive systems at the moment are not designed for that yet plus the amount of iron would be bad for our bodies unlike the mosquitoes/leeches and the other 'mammal' are, so that if we expand like said and go live off what's more 'unlimited'?

Maybe we could apply this to countries that have extremely high populations and make their diet somehow have a limit/more of a minimum for consumption of limited resources, so they are made to feed on something more sustainable? See how it goes?

While the lower population nations do not have to be made to live on 'blood' or photosynthesize, and can eat food as normal as well as get enough to just go around.
 

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What's saying we can't survive on blood alone already? But who in their right mind would want to? So you are talking about a plant human hybrid? Lol. All I can think is Treebeard from Lord of the Rings. It would probably be something but you wonder how ethical it would be, experimenting on humans out of curiosity.
 

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Discussion Starter #7 (Edited)
What's saying we can't survive on blood alone already? But who in their right mind would want to? So you are talking about a plant human hybrid? Lol. All I can think is Treebeard from Lord of the Rings. It would probably be something but you wonder how ethical it would be, experimenting on humans out of curiosity.
I'm not saying the two combined but one of the two, as in humans would be humans in every way imaginable just as now but somehow be able to 'photosynthesis' the same way as plants.

The expansion of diet to include making them survive on blood is if that doesn't work, and maybe other things that they can consume instead of meat/plants?

The best solution so far to the issue of food scarcity seems to be expanding the diet of people though however messy it might seem. Find a sustainable unlimited resource people can consume from.

Also it would not be all humans but the big population countries where we could apply it on such as China, India, Japan and maybe USA? If we don't find an alternate source of change people's diet to access that we risk having a food shortage crisis, or the planet being consumed up. There's just not much of a choice, its not about 'who would want x' etc but down to the fact if people live off blood instead of meat it might be more sustainable for the environment/less cruel for animals in general, or if they can photosynthesize somehow even better?

The problem is if we don't make them live off a new food source they might consume all of the planet's resources. We have to start putting the environment over human want or else this planet won't last, otherwise its selfish.
 

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I'm not saying the two combined but one of the two, as in humans would be humans in every way imaginable just as now but somehow be able to 'photosynthesis' the same way as plants.

The expansion of diet to include making them survive on blood is if that doesn't work, and maybe other things that they can consume instead of meat/plants?

The best solution so far to the issue of food scarcity seems to be expanding the diet of people though however messy it might seem. Find a sustainable unlimited resource people can consume from.

Also it would not be all humans but the big population countries where we could apply it on?
lol could you imagine having leaves growing out of you? so freaky
 

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Discussion Starter #9 (Edited)
lol could you imagine having leaves growing out of you? so freaky
Um it would not be that but just that somehow people's bodies would use sunlight to create the food or energy needed to keep themselves alive. Not using leaves or any of that.

But for the sake of the environment people need to find an unlimited food source or sustainable one, for the other option blood is alot more abundant than meat also if we have to engineer their genes or diets for current living people to be able to better digest it. We are able to produce artificial 'blood' in factories too? Also less cruel for animals and healthier for the environment long-term?

Imagine if people were no longer allowed to butcher animals anymore to make a living after finding a new source that does not require outright killing them. It would just be like meat in a more liquid form with the way it tastes.
 

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Um it would not be that but just that somehow people's bodies would use sunlight to create the food or energy needed to keep themselves alive. Not using leaves or any of that.

But for the sake of the environment people need to find an unlimited food source or sustainable one, blood is alot more abundant than meat also if we have to engineer their genes or diets for current living people to be able to better digest it. Also less cruel for animals and healthier for the environment long-term?
well, have you ever heard of breathtarians? or fruitarians. some people claim to live on no food or just fruit. i read somewhere once you can get sustenance with sunlight shining in your eye. maybe that's why birds stare at the sun when it's setting or something like that.
 
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