X-Message-Number: 2683 From: Date: Tue, 5 Apr 1994 10:32:47 -0700 Subject: CRYONICS Trans Time Newsletter \tt\newsletter\vol3num2.asc:4/3/94 THE TRANS TIMES Life Extension through Cryonic Suspension ------------------------------------------------------------------ Volume 3 Number 2 April 1994 Copyright 1994 by TRANS TIME, INC., 10208 Pearmain Street, Oakland, CA 94603. Phone 510-639-1955. All rights reserved. New Suspension Forms Available TRANS TIME placed its first patient in suspension in 1974. In 1975 we completed the first set of legal documents for use in our pare-need suspension program. At that time, we offered the program in conjunction with the American Cryonics Society. There have been important changes that have occurred over the intervening 19 years: 1. We have thoroughly overhauled the legal forms that we use. We have discovered needed improvements through years of experience, and through several legal reviews of our documents. 2. TRANS TIME has established a program whereby clients can contract directly with us for services. This reduces the complexity of the program considerably, in that for the most part you only have to deal with one organization. At the same time, we no longer have a contract with the American Cryonics Society to service their members. We do have such a contract with the International Cryonics Foundation (ICF), but it is not necessary for you to join ICF now to obtain our services. The new package includes the following documents: How to Arrange for your Cryonic Suspension Required Documents Application for the TRANS TIME, INC. Suspension Program Will and Charitable Trust Will and Charitable Trust (filled-in sample) Consent for Cryonic Suspension Anatomical Gift by a Living Donor Optional Documents Certificate of Religious Belief Instructions for Completing Declaration by Next of Kin Declaration by Next of Kin Declaration by Next of Kin (filled-in sample) Life Line Application Durable Power of Attorney for Health Care Decisions Revocable Living Trust We supply this forms package to all subscribers to our Emergency Responsibility Service. When the subscriber has completed the funding arrangements and the required forms, we accept responsibility for getting the subscriber into suspension upon deanimation. Call us or write us for an Emergency Responsibility Application. TRANS TIME Investments by Art Quaife, Ph.D. TRANS TIME was formed 22 years ago as a for-profit cryonics corporation. The actual business of placing patients in suspension has been quite sparse since then; we are now maintaining 10 patients in suspension. Viewed solely as a business, cryonics has been terrible. So how have we survived? 1. For many years, we had Directors who were willing to work for free or cheap, because they were working to save their own lives. 2. More recently, we have made a number of very successful investments. The following is a complete list of all stock market investments we have made and sold: Investment Cost Sales Price % return compounded yearly Cryomedical Sciences $83,225 $480,000 89.48% Berkshire Hathaway $25,967 $ 28,500 8.18% Berkshire Hathaway $86,311 $ 93,250 5.86% Berkshire Hathaway $78,675 $118,196 76.18% Vanguard Index-500 $45,623 $ 45,908 3.21% In addition, we currently hold the following portfolio: Investment Cost 2/28/94 % return Price compounded yearly BioTime $32,175 $174,040 106.65% Berkshire Hathaway $59,823 $ 92,700 24.22% Apollo Genetics $ 4,000 $ 40,000 221.18% Vanguard Index-500 $ 4,377 $ 4,452 3.80% Vanguard Index-Europ. $25,000 $ 26,836 16.74% Vanguard Index-Pacific $35,000 $ 36,309 8.35% The Apollo Genetics shares are not publicly traded. The valuation shown is that of the last private placement. How should we put together the above figures to determine an overall rate-of-return on our investments? It is incorrect to simply average the returns in the right column. Clearly the larger the original investment, and the longer we maintained the investment, the more it should influence the overall return. The proper way to combine these returns is to treat this as an investment project with compounded cash flows. Cash is moving in and out of our total investment portfolio. Let C[i] be the amount invested or withdrawn from the portfolio at time t[i] (measured in years). C[i] is positive for a purchase, and negative for a sale. Let our portfolio be worth I(t) at today s date t. Then our overall rate-of-return on investment, compounded yearly, is the value of R that satisfies the equation: I(t) = SUM C[i] * (1 + R) ** (t - t[i]) i I solve this equation for R on the computer using Newton s method. There are even hand calculators (such as the Texas Instruments BAII Plus) that will solve the equation automatically for you. Using our results as reported above, we find that R = 80.20%, compounded yearly. This is a world-class return on investment: George Soros, eat your heart out! However we must note that our three most spectacular returns have resulted from being in on the ground floor of newly formed companies. This was possible for us because of our close relationship with the principals of these companies. But it is doubtful that we can continue generating these great startup returns in the future. Real Estate It is easiest to judge one's investment wisdom with the benefit of 20/20 hindsight. Just as our stock market investments look spectacularly inspired, our one real estate investment now looks spectacularly stupid. This investment is the purchase of a 37,000 square foot building that was to be the new home for Northern California cryonics. Our $245,000 share of the down payment bought us 48% interest in the building. Five cryonicists are now on the title for the remaining interest. What went wrong? First of all, we paid about 25% more than the building was worth. We listened to building evaluations by people who claimed to understand real estate, but who instead were driven by fantasies. Secondly, we got into a business arrangement that just won't work. The limited partnership that was to share the purchase with us fell apart shortly after closing. This left a co- tenancy of 6 parties, who are at odds with each other. The only co- tenants that are paying their bills are TRANS TIME and Carmen Brewer. It is difficult to determine the current value of our investment; my best estimate is about $100,000. It is entirely possible that the extortion attempts of one of the co-tenants will block all attempts to sell the building. In that case a total investment of more than $500,000 by Northern California cryonicists has become worthless. Other TRANS TIME Directors disagree with my assessment and believe that somehow we may still be able to sell the building at reasonable profit. May they prove me wrong! Even if my pessimistic evaluation proves correct, lumping together the real estate purchase with our stock market investments produces a total investment return of 36%. This is still an exceptional return on investment. BioTime Completes Second Public Offering BioTime, Inc. recently completed a public offering of 900,000 shares at $5 1/8 through Thomas James Associates, Inc. brokerage house. BioTime shares are now trading on the Boston Stock Exchange (trading symbol BTM) in addition to NASDAQ. BioTime now has more than $6,000,000 of cash available to finance its product development and testing programs and to seek FDA approval of one or more versions of its blood substitute and organ preservation solutions. "I expect the remainder of 1994 to be an exciting time for BioTime," said company President, Dr. Paul Segall. "With our financial position fortified by new capital, and the results of our research program continuing to meet our expectations, we hope to make significant progress in advancing our lead products into clinical testing and regulatory review." BioTime, headquartered in Berkeley, California, is engaged in the research and development of blood substitute solutions and technology for use in emergency trauma treatment, surgery, the preservation of organs awaiting transplant, and other biomedical applications. BioTime is the second company to spin off from TRANS TIME and raise millions of dollars on Wall Street. (The first was Cryomedical Sciences.) TRANS TIME benefits directly from BioTime's ongoing research, since we have the right to use all of their products for cryonic suspension purposes, royalty-free. Their Z+ ice-cold blood substitute has been successfully tested in dogs and baboons. Their Z2 cryoprotective solution is showing great effectiveness--see the following article. TRANS TIME is the only cryonics organization using these solutions. Improved Cryoprotective Solution by Hal Sternberg, Ph.D. Recent BioTime studies support previous observations that a newly developed cryoprotective solution ("Z2") is advantageous over other formulations that we have studied. We reported one year ago that earlier formulations maintained contractile activity of heart muscle cells after liquid nitrogen storage. The Z2 solution yields even better contractile activity of the stored muscle cells. Also brains of hamsters, reperfused after liquid nitrogen storage, are not edematous nor appreciably dehydrated, while capillaries become reperfused with blood or stain. We perfused whole rats and hamsters with a similar solution, removed full thickness skin samples, and froze the samples in liquid nitrogen. After thawing and transplanting the skin to other animals, we found that the skin regains function! Previously we had not been able to recover EKG signals from hamsters perfused with cryoprotective solutions and frozen at near sub-zero temperatures for more than 24 hours. Recently the Z2 solution has allowed repeatable recovery of EKG signals after storage at as low as -4.0 degrees C for more than 60 hours. Also, the same solution permits revival of animals after perfusion with 2 blood volumes and circulatory arrest for 45 minutes. We continue to test the Z2 solution. To date the results have exceeded what we could accomplish with earlier formulations. We have some evidence that frozen cryoprotected tissues undergo damage to the extracellular matrix and capillary bed. As we better understand the nature of freezing damage suffered by organs and tissues, we may be in a better position to reduce such damage. Artificial Intelligence ----------------------- The N Queens Problem: Triumph and Challenge by Art Quaife, Ph.D. The N queens problem is a time-honored challenge in artificial intelligence research. The problem is to place N queens on an N N chessboard in such a way that no two queens attack each other. (An ordinary chessboard has N = 8.) Two queens attack each other if they are on the same row, same column, or same diagonal. The problem can be solved for all N > 3, and the number of solutions goes up rapidly with N. You can easily experiment with the problem, starting with N = 4, by drawing a grid on scratch paper and trying to place non-attacking pennies on the grid. There are some (N2)! / (N! (N2 - N)!) ways of placing the N queens on the chessboard. For N = 20 this is 2.8 1033 placements, so generating and testing all possibilities is quite out of the question for even moderate N. Finding solutions to the problem requires efficient techniques for searching and pruning a large state space. One can write an elegant Prolog program to find all solutions, using only about 30 lines of code [1]. But in my testing using Arity Prolog 6.1, this program did not produce a solution for N = 30 in 11 hours of computer time. Whiz-bang solution I recently wrote a C++ program that finds all solutions, for all N up to 20,000! When N = 20,000, the computer has 400,000,000 chessboard squares to consider in placing the queens. Using Borland C++ running on a 486 DX2-66 machine, the following table shows the number of seconds my program took to find solutions: N 1 solution 1000 solutions ---------------------------------- 10 .00 .28 100 .22 2.15 1000 18.02 36.25 10000 1954.90 2165.70 20000 13734.89 14279.39 World record? I am ready to claim the world record for achieving solutions for N = 20,000, at least for solutions found on a personal computer. I can squeeze solutions for even higher N out of my program, but the runs are now taking long enough to make that unappealing. And so, to all my fellow AI researchers, techno-nerds, and codeheads, here is the CHALLENGE: Can you write a computer program that will find all solutions, and for N larger than 20,000 will actually determine some of them within (say) one day (86,400 seconds) of computer time? You will need some good heuristics to prune the huge search space. You will also need to write efficient code. If you succeed, you may get your name in the Guinness Book of World Records before I do. Reference [1] Bratko, Ivan. Prolog Programming for Artificial Intelligence, Second Edition, Addison-Wesley (1990). The Brighter Side of Death -------------------------- Etiquette: At the Funeral by Mark Twain [from Letters from the Earth, Bernard DeVoto editor, New York: Harper & Row, 1962.] Do not criticize the person in whose honor the entertainment is given. Make no remarks about his equipment. If the handles are plated, it is best to seem to not observe it. If the odor of the flowers is too oppressive for your comfort, remember that they were not brought there for you, and that the person for whom they were brought suffers no inconvenience from their presence. Listen, with as intense an expression of attention as you can command, to the official statement of the character and history of the person in whose honor the entertainment is given; and if these statistics should seem to fail to tally with the facts, in places, do not nudge your neighbor, or press your foot upon his toes, or manifest, by any other sign, your awareness that taffy is being distributed. If the official hopes expressed concerning the person in whose honor the entertainment is given are known by you to be oversized, let it pass--do not interrupt. At the moving passages, be moved--but only according to the degree of your intimacy with the parties giving the entertainment, or with the party in whose honor the entertainment is given. Where a blood relation sobs, an intimate friend should choke up, a distant acquaintance should sigh, a stranger should merely fumble sympathetically with his handkerchief. Where the occasion is military, the emotions should be graded according to military rank, the highest officer present taking precedence in emotional violence, and the rest modifying their feelings according to their position in the service. Do not bring your dog. Have Something to Say? We invite our readers to submit cryonics-related articles for possible publication in this newsletter. The best way to submit is to send us the article in a WordPerfect file, on an MS-DOS diskette. Call us about other electronic formats you may use. We will also consider typed or handwritten submissions. For Sale TRANS TIME has two used cryogenic storage containers for sale, which we have used for long-term storage of human patients. One of them is a two-patient unit, for which we want $8,000. The second is a one-patient unit, for which we want $5,000. If you are interested, contact us for further details. Upcoming Meeting TRANS TIME holds bimonthly business meetings at which visitors are welcome. The next meeting will be the Annual Meeting of Shareholders. This will be held Sunday, April 17, 1:00 p.m. at: The TRANS TIME Facility 10208 Pearmain St. Oakland, CA 94603 (510) 639-1955 Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=2683