The story starts from here:
www.pnas.org/doi/10.1073/...
Hemoglobin is expressed not only red blood cells but also brain cells, linked to mitochondria function and regulating Hif1a related gene expressions.

I enjoy superhero movies up to the middle phase. When the hero gets stronger, the villain gets stronger too. It starts with city crime, then saving the country, saving Earth, and finally expands into space. And once they go into space, they never come back. My threshold is up to saving the Earth.

I’ve been thought about traffic jam in the cells. Especially in polyploidy cells, they usually have bigger nuclei. When size is increased, nuclear envelope increases with square of length, but volume increase with cube of length. 4n will have 4 fold of NE, but volume of N will be 8 fold.

I wish someone working in synthetic biology would create photosynthetic microorganisms that replace chlorophyll with hemoglobin.