Everything is great about algae, except the taste.
"2017 might very well be the year of algae." Spirulina is already used as a protein-rich ingredient by many food manufacturers and health-conscious home chefs, but algae is poised to explode in popularity.
It's packed with vitamins, rich in omega-3s, and sustainable. The barrier here is flavor, with even NASA rejecting it for tasting weird, so the protein's path to market is likely as an additive or substitute for now.