Someone asked, or rather, stated, "The command in the Torah to bind Hashem's words on our arms is a metaphor. It doesn't mean to literally put the words in boxes and tie them on our arms!"
At least two dozen tefillin scroll fragments were found during excavations of the limestone caves overlooking the Dead Sea at Qumran in the 1950s (pictured above). Several tefillin boxes and straps were unearthed as well. They were among the world-famous cache of thousands of scrolls and Scroll Fragments containing biblical and sectarian texts from the Second Temple period.
These scrolls and tefillin they found in those caves are from 300 BCE–70CE. This shows that we have been physically binding them on our arms for at least 2,300 years.
One of the main differences between modern and Torah thinking is that modern thought believes each Generation gets smarter, knows more, while the Torah shows us that each successive generation gets weaker, knows less.
In the physical, scientific world, each generation learns and knows more than the previous generation. Spiritually, each generation gets weaker. Spiritually, our ancestors knew far more than we do.