Here is some new technology which looks very promising: detecting viruses with a laser in seconds.
Dr. Hulda Clark used a device called the Syncrometer which she developed from an earlier bio feedback device called the Dermatron. The advantage of electric detection is that it is much faster than chemical detection. Of course, bio feedback testing has been criticized for being “unscientific” — but has been used and is still used by thousands of natural health practitioners to monitor the progress of their clients.
This device here is also interesting even though it uses a more traditional chemical detection technique: but it can detect almost 3000 pathogens in one test!
https://www.llnl.gov/news/newsreleases/2010/NR-10-05-02.html
I believe that if such techniques are good enough and cheap enough to be widely used, they will open the door to finding out what is in us and around us and that will give us insights we cannot otherwise gain. Just like Dr. Clark found the connection between diseases and certain pathogens or toxins with the Syncrometer, seeing what our eyes can’t see will make us realize previously unknown interdependencies.