Darwin Unhinged: The Bugs in Evolution

In Lamarckism, mutations are preserved based on beneficial acquired characteristics, which would require some way for bodies to identify which acquired traits are useful, reverse-engineer the genetic changes that would achieve them (which is basically impossible without huge computational resources because DNA is more of a recipe than a blueprint), then update gametes with these changes. The only mechanism found to even remotely furnish this capability is epigenetics, but epigenetic mechanisms only operate at the level of entire genes or long DNA sequences - no real creativity. With Lamarckism it has also sometimes been proposed that the required genetic changes can arise through some other mechanism than random mutation. This amounts to three or four amazing capabilities for which no mechanism has ever been proposed.

I am not qualified to expound on the subject - but I think you are not aware of the context of Bioinformatics.  DNA is just one part of an entire communication system.  No one part of bio-communication does it all; and any change to one means they may all are affected.  Epigenetic changes are defined as being outside of changes to DNA codon chemistry.  You will typically see me refer to DNA/RNA/Ribosomes as a grouping to designate the subject.  In my limited understanding, it is in the decoding process of RNA transcription and rDNA where epigenetics communicate with the functional channels that carry signals for protein building.

I read into your responses the materialist worldview where chemistry runs the show.  This is not the case, as communication runs the show and presents instructions.  The reverse engineering doesn't start with the mechanical "gears" - but with goal-oriented messages.  Messages are measured in information theory and in linguistics - neither which are covered in chemical bonding studies.  DNA is hardware beloved by materialistic contexts.  Behavior, symbolic representation and epigenetic signals are functional as software.

Mind makes a difference.  Selections made by minds change real-world probabilities, including adaptive behavior.

 Transformations of Lamarckism

From Subtle Fluids to Molecular Biology
Edited by Snait B. Gissis and Eva Jablonka 

“This book is long overdue. Lamarck and Lamarckian ideas were not only ignored but actively ridiculed during the second half of the 20th century. As the subtitle of this book indicates, some of the most cogent reasons for reassessing those ideas come from within the citadel of molecular biology itself. A great strength of the book is that it does not seek to reintroduce Lamarckian ideas as they were originally formulated; rather, the Lamarckian perspective is used to assess where the modern synthesis needs extending or even replacing. For any serious student of evolutionary biology, this work will be a bible for many years to come.”

—Denis Noble, FRS, Oxford University, author of The Music of Life