Vegetarians: outsource your meat eating. Venus fly traps can go vegan, if with a shortened and miserable life.

Hybrid drivers: stop duping yourselves and others. Hybrids are no more environmentally friendly than a small regular car, and maybe even a bit worse. Want to be sanctimonious? Ride a bike.

Bus riders: time does slow down when you’re on the bus — provided you’re traveling above about a tenth of the speed of light. Thanks Hendrik!

Pot smokers: yes, you might have “psychotic symptoms“, like hallucination, disorganized thoughts, agitation, or aggression. Pot might make you crazy, or you might just be high. Science isn’t overly concerned.

Have a question on stem cells, yeast, epigenetics, transplant biology or gene therapy? Put it in the comments and I’ll answer it within a day, or your money back. Or send your questions to DearScience@thestranger.com.