What was your initial sense of mccandless's mental condition compared to what you think now? have you changed your mind?

At first, I thought that McCandless mental condition is normal and his sanity is just the result of his superb intelligence. Now, I changed my mind about his mental condition because he has this guilt that needs to be resolved so he would not be wrapped up to his brilliant ideas that made him think crazy things.

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.